• TABLE OF CONTENTS
HIDE
 Front Cover
 Title Page
 Table of Contents
 Introduction
 Key to families
 Families represented by specimens...
 Species previously reported from...
 Bibliography
 Back Matter
 Back Cover






Group Title: Scientific survey of Porto Rico and the Virgin Islands
Title: Scientific survey of Porto Rico and the Virgin Islands ; volume 11, part 1
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 Material Information
Title: Scientific survey of Porto Rico and the Virgin Islands ; volume 11, part 1
Alternate Title: Scientific survey of Puerto Rico and the Virgin Islands
Physical Description: 19 v. : ill. ; 24 cm.
Language: English
Creator: New York Academy of Sciences
Jay I. Kislak Reference Collection (Library of Congress)
Publisher: New York Academy of Sciences
Place of Publication: New York
Publication Date: 1928
Copyright Date: 1919
Frequency: completely irregular
 Subjects
Subject: Scientific expeditions -- Periodicals   ( lcsh )
Natural history -- Periodicals -- Puerto Rico   ( lcsh )
Natural history -- Periodicals -- Virgin Islands of the United States   ( lcsh )
Natuurlijke historie   ( gtt )
Geologie   ( gtt )
Expedities   ( gtt )
Genre: bibliography   ( marcgt )
Spatial Coverage: Puerto Rico
United States Virgin Islands
 Notes
Summary: Includes bibliographies.
Ownership: Provenance: Gift of Jay I. Kislak Foundation.
Dates or Sequential Designation: Vol. 1, pt. 1-
Dates or Sequential Designation: Ceased with vol. XIX, pt. 1.
General Note: Latest issue consulted: Vol. 18, pt. 4 (1952).
General Note: Kislak Ref. Collection: Vol. 18, pt. 2 (1941)-pt. 4 (1952).
Statement of Responsibility: New York Academy of Sciences.
 Record Information
Bibliographic ID: UF00091487
Volume ID: VID00001
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 01760019
lccn - 2002209050

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Table of Contents
    Front Cover
        Front Cover 1
        Front Cover 2
    Title Page
        Page 1
        Page 2
    Table of Contents
        Page 3
    Introduction
        Page 4
        Page 5
    Key to families
        Page 6
        Page 7
        Page 8
    Families represented by specimens collected under the auspices of the New York academy of sciences
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    Species previously reported from Puerto Rico
        Page 114
        Page 115
        Page 116
    Bibliography
        Page 117
        Page 118
    Back Matter
        Page 119
        Page 120
    Back Cover
        Page 121
        Page 122
Full Text











SCIENTIFIC SURVEY


-to Rico and the Virgin Islands


VOLUME XI-Part 1


Insects of Porto Rico and the Virgin Islands
Diptera or Two-winged Flies-C. 1. Cuian


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NEW Y-I.RK
PUBSlHSE Bor THEl ACADLM.
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NEW YORK ACADEMY OF SCIENCES


SCIENTIFIC SURVEY

OF

Porto Rico and the Virgin Islands


VOLUME XI-Part 1

Insects of Porto Rico and the Virgin Islands

Diptera or Two-winged Flies-C. H. Curran


NEW YORK:
PCBLESHED BY THE ACADE ~
192S












INSECTS OF PORTO RICO AND 'THE VIRGIN

ISLANDS


DIPTERA OR TWO-WINGED FLIES*

BY C. H. CUERAN

CONTENTS
Page
Intllroduction ........... . . . . . . . . . . .............. 4
eys......................................... .....................4
Extent of the collection ........................ .... ............... .
Acknowledgm ents .... ............................. ... .......... 5
Key to families................. .............. ..................... G6
Families lrepresentetd by s pecimens collected under t lie auspiuesl of tlhc New
York A.cademy of Sciences .................. ........................ 9
Tipulid;t (by Climrls I'. Alexander) .............................. ..
l e111 lricm rider .............. ................ ........ ............ il
Culiciae (biy C. t. Twinll l .............. ... ..... .... ............. 10
('lhi 1r ioml id(l ..e ...... ... .. ........................... ............. 10
M y, etop)hilidw ...... ....... ........................ .............. 13
Sciarlda; ........................................................ 15
Stratioim yida .......... ............ ..... . .... .. ............... 15
Taalmnidl ................................. ......................... S
Iomllbylli tl ie .... ................................... ............... 18
Asilidle ............. ....................... ..... ... .............. 22
Tlerev\ id e ............ ......................... ....... .......... 24
Emlnilididal ................. ................................ ...... 25
Iolichllpodid)le determinedl by M. C. Va\n Duze)') ................. 2
Syrpl ih .e ......................... .......... .. ................... 33
Plh ri a .......................... .............................. 43
I'p)in ui lidce ..................................................... 43
Chlonropid:e .................. .... ..... ......................... 44
EIllhydri(i e determinedd ill part by E. T. Cressoin. Tr. I.............. 5S
1 )rosoplhilide .............. ............ . ............. ........ .. 3
A gr m yzid e ...... ........ ... ..........................................
O cl thli ilidr ............ .......................................... 6
M iliichiid ......................... ........... ............ 66
B orborida ............ ........................................... 6S
T rypaneidw: ............ .......................................... 69
Sepsid e .................................... ....... ............ 74
S)rtalid .......................................... ............... 76
S;iprom yzidTe ....................... ............................ 81
Lonclhaeidt.e ..................................... ................ 85

*Th publication of this paper has been made possible through grants from the
income of the John Strong Newblerry Fund and front the general funds of the New York
Academy of Sciences.
(3)







SCIENTIFIC SURVEY OF PORTO RICO


M\icroezidec (determined by E. T. Cresson. Jr.) ............ ........ S5
Tet miii ceridi, .......... .... ............... ...... ....... .......... 85
M uscid:e ........................................ .............. 86
C ulliphorid e .................................... ............... 92
Sarcophagide ........................ ......................... .
Taclinida ...................................... ............... 104
Species previously reported from Porto Rico. .......................... 114
Itillingraplhy ...................... ................ ................ 117


1 INTRODUCTION

The material upon which this report is based has been collected through
lhe co-operation of the New York Academy of Sciences and the American
Museum of Natural History and comprises by far the largest collection
of flies vet brought together from any group of islands within the West
Indies. The first extensive paper dealing with the Diptera of Porto
Rico was that of von Roeder' in 1885, which was followed in 1900 by a
report prepared by Coquillett2 on a collection in the U. S. National Mu-
seum. The collections dealt with by these authors were relatively small
and most of the species recorded by them are represented in the material
at hand. Since the appearance of Coquillett's paper there have been only
isolated descriptions of species from the region. The first Diptera from
the Virgin Islands of which we have actual record are those described by
Fabricius, who in 1794 and 1805 named several species from the island
of St. Thomas. In 1830 Wiedemann also named several species from this
island. It is not certain that Linnaeus described species from our region
before Fabricius, although it is possible that some which lie recorded as
occurring in the West Indies came from St. Thomas.

KEYS

In preparing this report 1 have included a key to the families and keys
to the genera and species where the material warrants. It may be argued
that a key to a local fauna is misleading since additional species, dis-
covered in the course of time, will probably trace out to one or another
of the species recorded in the key. Such argument is of little weight. for
most undescribed forms will run down to described species in almost any
key, even one that is reasonably complete. A key must be regarded
merely as a guide to the putative species, and only recourse to a complete
description can serve properly to establish the identity of the insect.

1 Von Roeder, Stett. Ent. Zeitg., 1885, pp. 337-349.
2 Coquillett, Proc. U.. S N. M., xxii, pp. 240-270.







CURRAN, INSECTS OF PORTO RICO 5

In all cases I have given the reference to the original description of a
species and it is hoped that this will simplify the determination. It is
presumed that the keys are far from complete, as there must be a very
large number of species occurring in the Islands of which we have no
records. From time to time the keys may have to be enlarged and eventu-
ally they may serve as a basis for a complete synopsis of the Diptera of
Porto Rico and the Virgin Islands.

EXTENT OF THE COLLECTION

Some idea of the extent of the collection on which this report is based
may be obtained from the fact that there are representatives of more than
thirty families. In the following pages more than three hundred species
*are recorded from representatives in the collection examined and, if we
add to these the species listed without comment, the number is increased
to about five hundred. The types of the new species described in the
present paper have been deposited in the American Museum of Natural
History.
The determination of specimens from the West Indies is a rather
tedious process inasmuch as one must consider the fauna of the whole
of America and there is no catalog of the species occurring in South
America. Many of the species are evidently peculiar to the Islands while
others occur also either in South or North America. In some cases spe-
cies represented in the collection are known from as far north as Canada
and as far south as Argentina. Many of the species were originally de-
scribed from Brazil and the United States, although the majority are
peculiar to the region bordering the Caribbean Sea.
At the end of the paper I have given a list of species hitherto recorded
from Porto Rico but not represented in the collection examined. A good
many of these records may have been based upon erroneous determina-
tions but it is impossible to correct such mistakes without examining the
specimens upon which the records are based. Most of the names, as well
as references to the descriptions of flies that have been published since
1901. will be found in George N. Wolcott's Insectae Portoricensis, Journ.
Dept. of Agric. Porto Rico, 1924, Vol. VII, No. 1.

ACIKNOWLEDGISENTS
For assistance in preparing the report I am greatly indebted to J. M.
Aldrich, C. P. Alexander, E. T. Cresson, Jr., C. R. Twinn, MI. C. Van
Duzec and G. S. Walley. Dr. Aldrich kindly compared many of the
Tachinid e with material in the United States ,National Museum.








SC'IE\A T'FI'C SURELY OF 1PORTO 11ICO(


Mention should here be made that the specimens reported in the pages
that follow were secured largely by F. E. Lutz, II. E. Crampton. A. J.
Mutchler, F. E. Watson, 11. G;. Barber and L. B. Woodruff, whose several
expeditions to Porto Rico and the Virgin Islands, extending in the case
of 31essrs. Lutz and C'rampton not through one season blut several. were
made possible by funds supplied by 'The New York Academy of Sciences,
the Porto Rico Govermient and The American Museum of Natural
History.
KEY TO FAMILIES

1. Flattened, more or less coriaceous flies, the legs in each pair broadly
separated by the sternum .......................... ............ 4.
Rarely flattened; legs closely approximated ......................... 2
2. Antennai consisting of four or more segments ....................... .
Antenn:e consisting of three segments and often a stout, terminal
style or arista ................................................. 11.
:. Antenna? consisting of six or more freely articulated segments; anal
cell not or scarcely narrowed apicaly............................ 4
Antenn:e consisting of three to five freely articulated segments, those
beyond the third usually more or less fused: anal cell narrowed or
closed apicall y................................................. 11
4. Wings with less than nine longitudinal veins or with crossveins on
the apical half..................................................
Wings with nine or more longitudinal veins, without crossveins except
basally, densely haired along the veins .................. 'sychoidde.
5. JMesonotum without a V-shaped transverse suture................... 6
lesonotum with a deep V-shaped transverse suture ........... Tipnlidte.
6. W ing without a net-work of fine lines ...............................
Wing with a net-work of fine lines over much of its surface .......
Blephiarerceride.
7. Anal veins present or represented by folds.......................... S
Anal veins entirely absent.............................. Cecidlomyide.
S. Ocelli present ........................................ ............. 9
Ocelli absent .......................................... Chironomide.
9. Antennte usually longer than the thorax, or. if not, the coxTe elongate
or the legs slender. ............................................ 10
Antenme shorter than the thorax; legs usually stout: cox;e short.
ililionidme.
10. Eyes rounded or oval .................. ............... Mycetophilidal.
Eyes strongly produced towards each other above the antenme. Sciarid:e.
11. Antelnm: consisting'of four or five freely articulated segments ....... 12
Antennme consisting of more than five segments, the apical ones not
freely articulated.................. ............................ 13
12. Front excavated above on either side of the ocellar swelling.... silid.
Front not collnave above from anterior view............... BIomlyliide.
13. Alulet of wing large ....................................... Talbanide.
Alulet small, elongate, often almost wanting.............. Stratiomyidac.








CURRAN, INSECTS OF PORTO RICO


14. Wings with strong veins on the posterior half and usually with cross-
veins ........................................................ 15
Wings with two or three strong veins in front and several weak longi-
tudinal veins, without crossveis .......................... Phorid;e.
15. With a frontal lunule or suture, the anal cell never extending close to
the wing margin except as a long, narrow production............. 25
Without frontal lunnle or suture or, when one is present, the anal
cell extends close to the wing margin ............................. 10
10. Second basal cell present ...................... .............. ..... 17
Second basal cell absent.............................. Dolichopodidre.
17. Third vein simple ............................................... 22
Third vein with anterior branch .................................... 18
18. Front concave on either side of the ocellar swelling, from anterior
view ................................................... silide.
Front not hollowed, from anterior view............................ 10
1!. Empodia bristle-like or wanting ................................... 20
Empodia developed pulvilliform.......................... RhagionidTe.
20. Wings with four posterior cells ..................................... 21
Wings with five posterior cells............................ Therevidne.
21. Anal cell extending close to the margin of the wing, sometimes open.
Bombyliidie.
Anal cell not reaching more than half way to the wiing margin. Empiidie.
22. Anal cell extending more than three-fourths the distance to the wing
margin ............................ ................. 2
Anal cell not extending more than half way to the wing margin. Empidid:e.
23. No spurious vein between the third and fourth longitudinal veins.... 24
A spurious vein between the third and fourth longitudinal veins. SyrphidTe.
24. Without frontal and facial sutures....................... Pipunculidie.
With frontal and facial sutures............................ Conopid-e.
25. Squamie usually greatly developed: coastal cell reaching to the middle
of the wing; mesonotum with the transverse suture almost entire.. 42
Squamte never large, the lower lobe linear or nearly so: mesonotal
suture obsolete for almost half its length ........................ 2
20. Subcostal vein entirely free from the first vein and ending in the
costa some distance before end of first vein, the first vein usually
ending near the middle of the wing ............................. 34
Subcostal vein partly or wholly fused with the first vein. evanescent
at its tip or absent .............................................. 27
27. First segment of the posterior tarsus longer than the second.......... 28
First segment of the posterior tarsus swollen and conspicuously shorter
than the second ....................................... Borboridie.
28. Subcostal vein not evanescent at its tip ............................ 29
Subcostal vein evanescent at its tip, its apex represented by a trans-
verse fold extending across the costal cell.............. Trypaneidre.
29. Anal cell absent ................... ............................... 30
Anal cell present................................................ 31
30. Frontal bristles feebly developed ........................... Chloroplde.
Frontal bristles strong .................................. Ephydridre.








N'CIE"STIFb' SURVEY OF PORTO RICO


:1. Arista rarely plumose (if so the costa fractured once), usually pubes-
cent or bare................................. ............................. 32
Arista plumose or pectinate; costa with two fractures.... Drosophilid;e.
.32. Costa broken once or, if broken twice, the proboscis not geniculate .... 33
Costa broken twice, the proboscis geniculate ................ Milichiidfe.
33. Basal segment of the arista longer than wide; postvertical bristles
divergent, often absent................................. Geolnyzid e.
I:isal aristal segment very short; postverticals divergent. rarely
absent ................... ............................ Agromyzid .
34. Oral vibrissm present........................... .. .................. 41
Oral vibrissie absent................................ .............. 3
35. Legs short, norm al .............................. .... ........... 36
Logs long and stilt-like; apical cell narrowed apicall........ icropezide.
36. Tibibe with preapical bristles ....................................... 40
Tibia, without preapical bristles ...................... .............. 37
37. Ovipositor membranous and retractile................. ... ... ....
Ovipositor chitinized. not wholly retractile.......................... 39
38. rlpil well developed; front with bristles anteriorly...... Ochthiphilidre.
Palpi vestigial; front not bristled anteriorly ................... Sepsid-e.
39. Only one fronto-orbital bristle: a single costal break........ Lonehaeidre.
Usually more than one fronto-orbital or, if not, there are indications
of two costal breaks or the anal cell is acutely produced posteriorly.
Ortalidie.
40. l'ostvertical bristles converging; middle femora without a small an-
terior median bristle.................................. Sapromlyz:de.
Postvertieal bristles parallel or wanting; middle femora with a small
anterior median bristle ............................. Tetanoceridie.
41. Costa broken before the tip of the subcostal vein.............. Clnsiid'e.
Costa not broken ....................... ... .... ............. Scpside.
42. Metascutellum not conspicuously swollen............................ 43
Aletascutellum well developed, appearing as a strong convexity ininedi-
ately below the scutellum ............................... Tachinidae.
43. Hlypopleural bristles present ...................................... 44
H lypopleural bristles absent ............................ ..... M usidie.
44. Posthumneral bristle situated nearer the side of the mesonotum than
thle presutural ; if absent, the color metallic green or blue. Calliphoride.
Posthumeral bristle situated farther from the side of the thorax than
the presutural ..................................... Sarcophagidie.
45. Head with a conspicuous movable neck; eyes vestigial or wanting.
Streblid:e.
Head deeply sunk into the thorax, the neck not conspicuous; eyes well
developed, round or oval............................. IIippolloscidw.








CURI. X, INSECTS OF J'ORTO RICO


FAMILIES REPRESENTED BY SPECDIENS COLLECTED
UNDER THE AUSPICES OF THE NEW YORK
ACADEMY OF SCIENCES

TIPULIDE

BY CHARLES P. ALEXANDER

Megistomastix portoricensis Alexander
1912. Jlcgistoman0tiej. portoriensis Alexander, Psyche. xix. p. 6..

One male specimen, Luquillo National Forest. November 18, 1925
(above 1500 feet. on trail to summit of El Ynnque). The type specimen
was from this same region: El Yunque, altitude 2800 feet, February 20,
1900 (C. W. Riehmond).

Rlipidia (Arlilpidia) domieslica Osten Sacken
18s!). Rhipidia donmestica Osten Sacken, Proc. Acad. Nat. Sci., Philadelphia,
1. 20S.

Manati, June 27-29. 1915.

Geranomyia (Gerainomyia) domingensis Alexander
1916. (Gr'ront myia domniinfIpsis Alexander, Proe. Acad. Nat. Sci., Philadelphia,
pp. 490-491.

A female specimen, 3aameyes, November 19, 1925.
This is very closely related to G. ciaereinooa Alexander of South Amer-
ica and may not be distinct from it.

Gonomlyia (Lipophleps) species

A broken specimen, Coamo Springs, July 17-19, 1914. It belongs to
the cincrea group and may be G. (L.) ielopltila Alexander.

BLEH'ILA-IICERID-E

This family is represented by a single species, which has recently
been described.
Paltostoma argyrrocincta Curran
1927. I'altostoma argyrocinctu Curran, American -Museum Novitates. No. 245,
p. 1.

The original description was based on five males taken at Rio Grande,
Porto Rico, July 3, 1915.







NCIEA.\ TI'IC S'R'7IRVEY OF I'OliRTO HICO


CULICIDhE

BY C. R. TWINN

The mosquitoes in the collection consist of about seventy specimens.
Nearly all belong to Cule.r qubiquefascialus Say, the common household
mosquito of the tropics. The yellow fever mosquito. Aedes aegypti Lin-
naeus, is represented by four females taken at Mlayagiiez and Alanati, and
four males collected on Mona Island. A cdes viedioritiata (Coquillett)
)yar & Knab and the genus Wyeoimyia are each represented by a single
female, the latter in a damaged condition.

Culex quinquefasciatus Say
1S2:3. (uler. qii queiftsrci(ttis Say, Jounrni cd. A ad Na. Sci., 'hil., iii, . l.

Four males, Fajardo, January 19, 1914; two males, three females,
Mayagiiez. February 15-16, 1914; one male. fourteen females, San Juan,
July 9, 1914, and eight females, July 1-5, 1915; two males, seven females,
(aguas, May 28-29, 1915, and one male and eighteen females, Manati,
June 27-29, 1915.
Aedes aegypti Linnaeus
17i2. Cuiex acgypti Linnaeus, Hasselq. I'alestina Reise, p. 470.

One female, Mayagiiez, February 15-16, 1914: three females. Manati.
June 27-29, 1915, and four males. Mona Island, February 21-26. 1911.

Aedes ineliovittata (('noquillett) Dyar & Knab
1100r. Nicyo iia merdiorittata Coquillett, Can. Ent.. xxxviii. p. 60.

A single female, Naguabo, March 7-9, 1911.

Wyeomyia species

One female in damaged condition, Adjuntas. June 8-13, 1915.

CHIRONOMID.E

The material in this family, with the exception of the species belonging
to the genus Crictoplus van der Wulp, have been worked over by Mr. G. S.
Walley. to whom I am much indebted for the assistance rendered. The
material is, for the most part, in only fair condition and the series are
small. As a result it has not been possible to make a definite determina-
tion in one ease, although the species in question evidently represents an
undescribed form. Since the collection is so small, no key to the genera
is given.








URI'A'.N, I/.NECTS' OF P'ORTO RICO


Ceratopogon Meigen
(eratopogon eriophorus Williston

18)'. Ccratopyolon eriophiornsi Williston. Tranls. Ent. Soc. London, p. 279.

One specimen. Alayagiiez, June 21-23, 1915.
There are also two specimens from the Dominican republic.

Crictopus van der Wulp

The three West Indian species belonging to this genus are separated
in the following table.
KEY TO SPECIES

1. Anterior tibib broadly blackish opically.............................
All the tibie whitish .............................. insolitus, new species.
2. Femora black with pale base; anterior tili;e white. black on apical
third, the middle pair brownish yellow on the apical fourth, the
posterior pair brownish basally, becoming yellow about tie middle,
all the tarsi yellowish with brown apices...... conformi8. new species.
Femora yellow, black alcally, the anterior pair broadly so; interior
tilli whitish in the basal half, blackish apicnlly. the others yellow
(St. Vincent) ................... .................... ,biliN Williston.

( ritopus insolitus new species
Fig. 1

Anterior tibimi wholly whitish, the anterior femorla yellow with the apical
third black, all the tarsi brownish yellow, becoming darker apically. Length,
2 to 2.5 min.
Malen. Head brownish. face yellow, month parts lateoln-: Iasal antenna seg-
ment brown, with reddish apex, second segment reddish, flagellar segments
brownish red. the rays fuscons.
'l'eurn brownish red, tlh upper incisures reddish: mesolnotum with three
hronid, sliniing brown vittfe which are almost fused behind the middle, the
outer ones abblrleviated in front and the median one behind, the color else-
where brownish red: pectus brown. Whole thorox shliling, with a thin coat-
inlg of whitish pollen. Scutellum and metanotumn shliinig black, the former
with the broad. poorly defined, free border reddish.
Legs yellow; about tie apical third or less of the anterior and the broad
apices of the posterior four femora. black or brown: tibide wholly wlitisl;
tarsi brownish yellow, becoming darker apically: anterior basitarsus about
two-thirds as long as its tibia.
Wings einereous hyaline, somewhat paler on the basal third or less. The
?ubitus forks beyond the fork of the medius but at a point less than half the
distance to the apex of the first vein. Halteres pale yellow.
First abdominal segment and basal fourth of the second shiining llack;
median two-fifths of the second and whole of the fourth metallic yellowish
(the fourth with a slightly darker median vitta?) : apices of the second, third,








SCIESTIN'IC SURVEY OF PORTO RICO


fifth and sixth segments narrowly yellowish, the nbdomen elsewhere opaque
brown to black. Venter pale to the middle of the fourth segment, thence
brown. Genitalia whitish yellow, with somewhat darker base.
Female. Differs from the male as follows: Thorax shining rusty reddish,
the humeri paler; brown vitt.a broadly separated, the intervening space being
as wide or wider than either vitta: pectus reddish: scutellum reddish brown.




Fig. 1.-CrictopuP insolitus, new
species. Wing.




First two abdominal segments pale yellow, the broad apex of the second and
the whole of the third opaque brown, fourth wholly metallic pale yellow.
Genitalia pale yellow, large, tallering, almost as long as the preceding three
abdominal segments, the styles as long as the basal portion, folded under and
resting against the valves, thus completing a triangle, their apices somewhat
broadened and bearing several short, curved hairs.

Type, male, and nine females, Mayagiiez, Porto Rico, June 21-23,
19 [5 : allotype, female, and twenty-five additional females, lanati, Porto
Rico, June 27-29, 1915.

SC(rictopus conforms, new species
Tibire whitish, the apical third or less of the anterior pair blackish; femora
blackish, the narrow bases reddish. Length, 2.75 to 3 mm.
Male. Head and the whole thorax shining reddish brown; face yellow or
brownish red, the base of the antennae reddish, the flagellar portion and the
rays brown.
Coxa: brown. their apices, trochanters and narrow bases of the femora
yellow. Ti'bia whitish, the anterior pair blackish on not more than the apical
third, the middle tibite stained with brown on the apical fifth, the posterior
pair brownish-tinged on the basal half. Tarsi yellow, becoming brown on the
apical segment: basal segment of the anterior tarsus two-thirds as long as its
tibia.
Wings cinercous hyaline. tinged with yellow in front and basally; fork of
the cubitus situated but little beyond that of the medics.
Basal abdominal segment shining brown ; the second opaque brown with a
whitish metallic band occupying the basal third in the middle and slightly
narrowing laterally; third segment opaque brown with a narrow, transverse
shining brown basal triangle; fourth segment with more than the basal half
metallic whitish, opaque brown posteriorly; fifth to seventh segments shining
brown with narrow, opaque brown apical fasci., the eighth segment opaque
black; genitalia whitish, with brown base.

Type; :-Type, male. Guane, Cuba, September 24-26, 1915; paratypes,
two males, Manati, Porto Rico. Jnne 27-29, 1915.








CURR.A, INSECTS OF PORTO RICO


Chironomus Meigen
Chironomus redeuns Walker

1856. Chironomius Irdculcns Walker, Dipt. Saund., p. -22.

Eight specimens, St. Croix Island. February 28, 1925. There are also
specimens from Haiti and Jamaica.
Coquillett has reported this species from Porto Pico,-it was originally
described from "United States." It is not impossible that this form is
quite distinct from redeuns Walker. The anterior basitarsus is three-
fifths longer than the anterior tibia. All the male specimens lack the
anterior tarsi. so that it is not possible to state whether they are
"bearded."
Chironomus species

There is a single male from Coamo Springs, July 17-19, 1914, which
is related to similis Johannsen.

MYICETOPIIILID.E

The collection contains but two specimens belonging to this family.
Both are new to science and descriptions are appended.

Boletilla Steger
IHoletina incomplete, new species
Fig. 2

Related to B. vilerti Johanusen but at once distinguished from all the species
in the genus by tile unusual venation. Pale rusty yellowish, the abdomen
mostly black. Length, 3.5 mm.
Femalc. Iead reddish yellow; each ocellus surrounded by a small black
spot, the median one small. Apical half of the flagellum brown, the basal half



Fig. 2.-Boletina in.'on lplitl, lwlv
species. Wing.



more or less tinged with brown. IIairs and bristles reddish brown. I'alpi
very long, pale yellow.
Pleura and metanotum mostly pale ferruginous: hair brownish, appearing
yellowish in some views. Scutellum with two strong and two weak bristles.
Hypolpleura with coarse, brown hair.
Coxal hair brownish, appearing yellow; posterior coxe with two or three








sCIEA l']FtC SURVEY OF PORTO RICO


posterior basal bristles. Middle and posterior tibie each with two ranges of
stout bristles, tin middle tihlie with two strong and two weak ventral bristles.
alisal segment of the anterior tarsus one-sixth longer than its tibia.
Wings (Fig. 2) pale amber colored. Halteres yellow.
Abdomen llackish alove, the second to fifth segments each with a broad.
widely interrupted brownish-yellow basal fascia, the apical half of the sixth
and the whole of the seventh segments brownishl y-llow. Venter luteous, each
segment with the base broadly darkened, rather blackish. Hair yellow.

Type. female, Adjuntas, P'orto Rico, June S-113, 1915.

Leia Meigen
Leia mutchleri, new species

Fig. 3

lack above: wings with two brown fasciT. Length, 4.25 lumm.
Male. Head and basal third of the antennae reddish yellow; front, except a
narrow anterior fascia. and the occipnt above. black; median ocellus as large
as the outer. Hair black; bristles reddish. Ialpi pale yellow.
Prothorlax reddish yellow: sentellumt reddish brown : mesonotnll with very
thin grayish pollen, the hair and bristles brownish. Mesopleura with thin
yellowish pollen on the lower half; hair of the pleura yellowish, darker on the
hypoIleulra.
Coxe and legs reddish yellow, the tarsi becoming blackish apically; hair of
the coxme and lower two-thirds of the femora yellow, elsewhere black. Middle
and posterior tibile each with two ranges of bristles dorsally; middle tibiae
with two strong and two weak ventral bristles; posterior tibie with a row of
fine setuln below. First segment of the anterior tarsi one-fifth longer than
the anterior tibite.
\\ings grayish byaline, the brown markings and venation as in Fig. 3. Hal-
teres yellow.



S Fig. 3.-Leio mutclicri, new spe-
cies. Wing.



Abdomen shining brownish black, each segment with a small, obscure basal
spot on either side, the apical segment wholly, and the venter, reddish yellow.
Hair black; pale on the venter. Genitalia black, with reddish appendages.

Ty1pe, male, Adjuntas. Porto Rico, June 2(i, 1915.
I take pleasure in naming this species for Mr. A. J. Mutehler, who has
collected many of the Diptera in the collection.








CUIRRAN. INSIJ,'CTsN OF PORTO RICO


SCIARID.E

The majority of the specimens belonging to this family are in poor
condition and there is only a single male. All of the species, five in num-
ber. belong to the genus Sciara Meigen. I am unable to identify a single
species but it is quite obvious that there are no representatives of the
species described from St. Vincent by Williston. Until an extensive
collection of perfect specimens is obtained, it is unwise to attempt a
classification of the West Indian species belonging to this family.

STRATIOM1YIILE

The Stratiomyids are represented by but few specimens, although one
or two of the species must be quite common in the region.

KEY TO GENERA
1. All the posterior veins (4) arise from the discal cell or the fiscal
cell is incomplete ............................................... 2
The fourth posterior vein arises from the second basal cell..........
2. Face conically produced forwards, the antenae situated on the snout
or at its base; third antenna segment with a terminal arista.
Nc otellus Geoffroy.
Face not conically produced forwards: antennm will a long, flattened,
lalerally fringed style........................... Hllrmcti n Latreille.
2. Antennme with a long. slender arista................... ............ 4
Antenme with or without an apical style ............................ 5
4. Scutellum with two strong spines ..................... Xothomyia Loew.
Scutellum without spines ............................. Pedicclla Bigot.
a. Antennat without a distinct style; third aintemnal segment composed
of more than six closely united rings............ Odontonlyia Meigen.
Antennm with a differentiated style; third segment composed of seven
or eight rings................ .............. (!Cjypl olity W iedenmann.

Nemotelus Geoffroy

There are two undescribed species, separable as follows:-

Front unicolorons .................. ................... thomae, new species.
Front with two whitish yellow spots below........... monrnsis. new species.

Nemotelus tlhomiae, new species
Length. 2 to 3 mm.
Agrees in all respects with crassus Loew but the snout is only half as long
as the width of either eye. The lower lobe of the squnama is Irown and bears
a brown fringe, while unicolor Loew has the squamne pale. In Melander's
key (Psyche. 173. 1903) the species traces to unicolor. The punctures of the
thorax are considerably finer and more numerous towards the posterir part








SCIENTIFIC SURVlEY OF IORTO RICO


of the mesonotum and the snout shorter than in iaicolor. The knobs of the
halteres are whitish. The differences between the species are slight but
apparently constant.

Types: five males and two females, St. Thomas Island, February 24
and 25, 1925.
Nemotelus monensis, new species

Metallic greenish black, tile front with yellowish white orbital spots below.
Length, 3 mm.
Fecmalc. Snout short, the distance from the orbit to its tip distinctly less
than the width of either eye: face and cheeks with very short whitish hairs;
the frolt and occiput evidently hare, the former with small, sparse punctures
on tile upper half, strikingly concave below the middle. Proboscis not curved.
Antenna shorter than the snout, reddish, the apical anunlus and arista black.
Mesonotum with fine punctures which are conden-sed laterally, posteriorly
and in two sub-median vittte, elsewhere almost without punctures, the sub-
lateral polished areas finely aciculate. Humeri and the rather broad upper
margin of the pleura in front of the wings very pale yellowish, the space
about the root of the wings reddish. Hair very short, not conspicuous, whitish.
Legs reddish ; a pre-median band on the posterior femora and the sub-apical
half of their tibite, black; tarsi yellowish, very pale basally.
Wings hyaline ; veins with very slight luteous tinge; third vein not branched.
Squante very pale yellowish. Halteres reddish yellow.
Abd(inen shining black, the sides and apex rather broadly reddish yellow;
hair very short and sparse, inconspicuous, whitish. Venter largely reddish
basally and along the incisures.

Type, female, Mona Island, February 21-21;. 19 4.

Nothomnyia Loew
Nothonmyia calopus Loew

1809. Sotlomnyia colopils Loew. Berlin. Ent. Zeitschr., xiii, p. 5.

Two specimens from Adjuntas, June 8-13, 1915.

Pedicella Bigot

This is the earliest name available for the genus Sargus Fabricius,
which is preoccupied. The single specimen in the collection represents a
new species.

Pedicella sch\warzi, new species
Allied to alchidas Walker from which it differs in having the oral region
black. tawny-haired scutellum, etc. Length, 12 mm.
Mrle. Ocellar triangle twice as long as wide: vertical triangle bright green,
the eyes contiguous for a shorter distance than the length of the occllar tri-
angle. Front whitish: face and front with fairly abundant upwardly directed








CCRi.AX, INSECTS OF I'ORTO I('CO


black pile; the head elsewhere with yellowish pile except that it is somewhat
fuscous on the ocellar triangle: vertical triangle without pile in front of the
ocelli. Face and occiput blackish; proboscis reddish.
Thorax bright metallic green, the upper edge of the mesopleura and most of
the metapleura whitish; propleura largely, sides of the mesonotnm posteriorly
and the posterior part of the pteroplhura brownish red: rhe humeri and a
slender, inwardly directed fascia in front, white. Pile fairly long. golden red-
dish, short and pale only on the sternum. Lower margin of the seutellum
somewhat reddish.
Legs reddish; posterior coxs' wholly, and about half of the middle pair.
shining black; hair entirely yellow.
Wings pale luteous basally, somewhat infuscated on the apical two-thirds
or more, the veins brownish : stigma Lno developed. Squanne yellow. Halteres
yellow, the knob brown except its apex.
Abdomen cliei1eous-bronzed, the sides with green reflections: pile golden
reddish, forming fasciea on the apices of tile segments, the second to tifth seg-
ments each with a very large, rectangular, basal black pilose area which is
always broadly separated from the lateral margins. The abdomen increases
in width from the blse of the second segment and is as broad at the apex of
the fifth segment as the thorax. Genitalia reddish.

Type, male. Cayey, Porto Rico, May :30-31. 1915.
Named in honor of Mr. Herbert F. Schwarz, to whom I am indebted
for many favors in connection with the preparation of this report.

Odontolyia Meigen
Odontomyia dorsalis Fabricius

1SO0. Stratiomy.s dorsolis Fabricius. Syst. Antl., p. 82.

Two specimens from San Juan, July 9-12 and August 2-3, 19l4.

Cyplhomyia Wiedemann

There is only a single species from our region in the collection. I in-
clude i ......"', Loew. which probably occurs there, in order to show the
relationship of the two species.

Seutellllum black; head black except around the base of the antennae.
lItsiophthal*in Williston.
Sentellum. face and front reddish: abdomen narrowly margined with red-
dish I Haiti. Cuba, Jamaica) ............................ mlaryilito Loew.

Cyplihomyia lasiolhlthalmus Williston

ISi96. ('lphoyifia losiophlthelmins Williston. Trans. Ent. Soc. London. p. "01,
1596.

One male. Cavev, May 30-31, 1915. and three females. St. Croix Island.
June 3, 1911 and March 3, 1925.








NCIElAT''IFIC SURVEY OF P'ORTO {RICO


These vary in size from five to eight millimeters but agree perfectly
with Williston's description. In some females the lower part of the front
and upper part of the face are reddish and the sentellar spines may be
brownish red as in the male.

Hermetia Latreille
Hermetia illutcens Linm.eus

175S. Musea illucens Linnaeus, Syst. Natune, p. S)9.

One specimen, Ponce, July 20-22, 1914.
This species has been previously reported from the island of Porto
IHico. It is distributed over the whole of tropical and sub-tropical Amer-
ica and must be very v comlnon in Porto Rico notwithstanding the paucity
of its representation in the collection. There are numerous specimens
before me from all the adjacent islands.

TABANIDA

Two species of Tabanida have been recorded from Porto Rico and,
while there are no specimens in the collection, I have seen examples of
Chrysops from both Porto Rico and Saint Thomas Island.
Chrysops cos.talts Fabricius. Porto Rico and St. Thomas.
Tabanius psouoph/ilus Osten Sacken. Porto Rico.

BOMsBYLIIDE

There are twelve species of Bombyliidm in the collection. In some
cases I have included additional species in the keys in order better to
show the relationships of the various forms. There are representatives
of but six genera.
KEY TO GENERA

1. The furcation of the second and third veins occurs opposite or almost
opposite the anterior crossvein at almost a right angle............ 2
The furcation takes place well before the crossvein at a sharp angle. 5
2. Antennal style not terminating in a pencil of hairs.................. 3
Antennal style terminating in a pencil of hairs, distinctly separated
from the third antenna segment.. ................... Anthr.r Scopoli.
3. Style distinctly separated from the third antenna segment.......... 4
Style not separated from the third antennal segment......... Villa Lioy.
4. Four submarginal cells .......................... Hypcir(lonia Rondani.
Three submarginal cells ......................... Exoprosopa Alacquart.
5". Wings with fonr posterior cells......................... 'lithiri I Meigen.
Wings with three posterior cells........................ Geron Mcigen.








C('U'I;.l, INSECTS OF P"OR'TO) 10ICO


Anthrax Scopoli

The collection contains but two species belonging to this genus. The
key ionitains a Xearetie species which has been confused with .4. wadipus
Fabricius and a species from Haiti which probably occurs in our region.
KEY TO SPECIES

1. Suirn-siljionalm ] tuft white............. . . ... . ............. 2
Supra-squaiilnal tuft black.............................. ............ 3
2. ('Cstal cell with only one io t wo oiscuren miller spots .... f.idcl on FI'abriciu,;.
Costal cell with several Ihyaline sp)its............... udiiplU Falirinis.
1. Costhl cell with several hyaline spots (i'. S.. Canlada ........ irrorihti Siay
Costal cell wholly blackish (Haiti) .................. filebtris lMac lli rt.

Anthrax gideon Fhrl'iinsu

1S.I5. .t Ilhrii.r !idcoi Fabricins, Syst. Anti.. 1. 12-1.

Three specimens from Ensenada, July 14-19, l)13, and Alaineyes,
March ;11. 19)25.
Anthrax redipus Fairicins

15,0.. Intlhr.r irilills Fabricius, Syst. Antl.. 123.

One specimen, St. Croix Islanl, March 5. 1925.
This is not the same as the northern form, differing from it in having
the tuft of hairs on the supra-squamal rilge snow-white. The species
occurring in the Nearctic region is irrorata Say.

Hlyperalonia Iiiuldani

There is but a single species belonging to this genus in the material
before me.
Hlyperalonia cerberus Falbricins

17!14. linthora cerberus Fabricius, Ent. Syst.. iv, p. 235.
1841o. E.rprii.osopa serrillei Macquart, Dipt. Exotica, ii. (1 Plate xvi. Fig. 3.

Fifteen specimens from the following localities: Arecibo, March 1-4,
1914, ,July -Al oust 1, 1914, June 24-2G. 19153: San Juan, July v -12,
1914; Ensenada, June 14-19, 1915; Isabella, January 4, 1915; Mona
Island. February 21-26. 1914, and St. Croix Island, March G, 1925.
Most of the specimens agree perfectly with Mac(quart's figure. I have
no doubt that this is the species described by Fabricius.

Exoprosopa Macqliart
Exoprosopa cubana Loew

18)6. E.roplrosorpa cbani Loew. Berl. Ent. Zeitschr.. xiii. 14.








N'1EA 'TIF1C SURI EY OF PORTO RICO


One specimen from Tallaboa, near Ponce. July 23, 1914, appears to be
this species, but the legs are reddish in ground color.

Villa Scopoli

The six species of Villa in the collection may be separated as follows:

KEY TO SPECIES

1. Wings hyaline, the sub-costal cell and immediate base brownish
yellow ...... ................... ................... .......... 2
Winlg with llbrown spots lor ;an extensive I rown pattern .............. :
2. Sqluanial hairs reddish yellow........................... fauni Fablricius.
Siqualinal hairs white, ait most with a yellowish tinge........ lateralis Say.
3. Wings with brown spots and at most a weakly developed brown pat-
tern ............................................. ............ 4
Wings more extensively deep brownish..... .......................
4. A brown spot on the pre-apical bulge of the third vein. parado.ra J.aennicke.
No brown spot on bulge of third vein................. gorgon Fabricius.
5. Vings very broadly hyaline epically and posteriorly. euinencs Osten Sacken.
Wings grayish brown. the anterior half brownish orange on the basal
half or more ..................................... hicifcr Faliricius.

Villa fauna Fabrieins

IS)0. Althror fauttls Fabricius, Syst. Antl.. p. 126.
'? lSU. Alithlrac in oreus .Loew. Berlin Ent. Zeitschr., xiii, Ip. 27.

Ten specimens, all taken at St. Croix Island, February 26. 27 and
March 3 and 6, 1925.

Villa lateralis Say

1S23. AUthra' lateralis Say. Journ. Acad. Nat. Sci., Phila.. iii, p. 42.

More than thirty specimens from the following localities: Coamo
Springs, January 10-15 and June 5-7, 1915; Aibonito. July 14-17, 1914:
Ensenada, June 14-19, 1915 ; Tallaboa, July 23, 1914; Ponce. July 20-22,
1914; Mona Island, February 21-26. 1914; Charlotte Amalie, St. Thomas
Island. June 3, 1911; St. Thomas Island, February 21, 25, 1925, and St.
John Island, February 10, March 7, 10, and September 14. 1925.

Villa paradox Jaennicke
187. Alithra.e paradox'us Jaennicke. Abbandl. Senckenb. Naturf. Ges., vi. ip.
339.

Six specimens: Ensenada, June 14-19, 1915, and one from St. Thomas
Island, March 13, 1925.








CURlRAX. INS 'CTSI' OF PORTO RICO


Villa gorgon Fabricius
IsO.. Anthrax yorgoa Fabricius, Syst. Antl., p. 12C.

Thirty-five specimens from the following localities: Ponce, July 20-22,
1914; Arecibo, July 30-August 1, 1914, June 24-2(i, 1915: San Juan,
February 9-12, 1914, July 9-12, 191,1. May 26-27, 1915; Guayanilla,
July 22, 1914; Coamo Springs. June 5-;, 1915: Ensenada, June 11-19,
1915; Tallaboa, July 23, 1914; San Turce, August 1, 1914; Mayagiiez,
June 21-23, 1915: Tortogueros Lake, Manatf, November 20, 1925; Desc-
cheo Island, February 18-20, 1914, an(l Mona Island. February 21-26,
1914.
Villa eluifer Fabricius
1775. Bibio lucifer Fabricius, Syst. Ent., p. 759.

Fourteen specimens from Porto Rico: Coamno Springs, July 17-19,
1914, January 1, 1915, June 5-7. 1915; Arecibo, June 24-26. 1915;
Ensenada, June 14-19, 1915, and Guayanilla. July 22. 1914.

Villa enmenes listen Sneken
1SS7. .Anthrax cimcs Osten Sacken, Biol. Cent. Amer.ip. 1ipt., p. 131.

One specimen, .\Ancgda Island, Malrch 31, 1925.

Phthiria Meigen

The single specimen of this genus represents an undescribed species.

Pltlhiria fasciventris, new species
Length, 4 mm.
Mlle. Head blackishl; a yellow spot on the upper part of the frontal tri-
angle: head grayish pollinose except along the oral margill; pile short, yellow-
ish white; vertical triangle opanq(e black. Antenna black; third segment
Ibrndily rounded apically, with a small style situated in the apical depression.
Proboscis as long as the thorax and scutellum.
iMesollnitnm opaque brown, with a pair of dorsocentral -itt:e which broaden
behind. and the whole posterior fourth, opaque black. Humeri yellow; pos-
terior calli and scutellum milky white, the latter with the base broadly rusty
yellow in the middle. Ileura reddish-brown pollinose. Hair of the thorax
sparse, yellow.
Legs reddish yellow, the apical tarsal segments black; coxse black; femlora
somewhat brownish basally.
Wings hyaline, some of the veins with projecting stumps. Squnama white.
Knob of the halteres brown with whitish apex and stem.
Abdomen rusty brownish-red with the base of each segment rather irregu-
lhrly oli(pque hilnck, the colors rather diffuse and not strongly contrasting
apex of each segment narrowly yellow. Genitalia dull black.

Type, male. Coamo Springs, Porto Iico, December 27, 1914.







.CtIE.TIFIC SURVEY OF 'PORTO RICO


Geron senilis Falricins

1794. Bo bnilitit scnilis Fabricius. Ent. Syst., iv, p. 411.

Several specimens from Ensenada, June 14-19, 1915, and Caquas, May
2 8-'-29. 1915.
ASILIDE

This family has a fair representation, but on the whole there are few
examples of it in the Antilles. The genera occurring in Porto lHico or
the Virgin Islands may he separated by the table which follows.
KEY TO GENERA

1. Marginal cell closed and petiolate.................................. .
Marginal cell open ......................................... 2
2. 'nulvilli absent............ ........ ............. Leptoygister Meigen.
'nulvilli present: only four posterior cells ........ T''owmsedlia Williston.
;. Arista with long rays itlotw peictinate 4.......... Ommatius Wiedenmann.
A rista not pectinate ...................... ......................... -
4. Lateral slopes of the inetanotum without fine hairs................... 5
Lateral slopes of the nietanotum with longish hairs....... silus tiinnlens.
-.. The posterior branch of the third vein joins the costa well before
the tip of the wing and is not at all curved backwards at its tip;
ovipositor of, female with a terminal circlet of spines.
Procttacat hu.s Macquart.
Thie posterior branch of the third vein joins the costa behind the tip
of the winlr or this branch is at least gently curved backwards
apically .......... .................... ............... E i. Seopoli.

Leptogaster Meigen
Leptogaster cubensis Bigot

18S5. G onjpc. citubru.si.s Bigot. in Sagra's Hist. de la Isla de Culba. Pt. 2. viii.
p. 322.

Two specimens from Mona Island, February 21-2G. 1911. Von Rfeder
has recorded tle species as occurring in Porto Rico.

Townsendia Williston

The single species belonging to this genus that is represented in the
collection has recently been described. I present a key to the known
species, all of which occur in North America.
KEY TO SPECIES

1. Front, except the sides and lower part, brown pollinose .............. 2
Front white pollinose: nllesollotull opaque yellowish-white pollinose
with black median vitta and lateral spots: tibia not white pollinose
Olexico) ....................................... minutta W illiston.








C('ULRR., INSECTS OF IORTO RICO


2. Third antennal segment tapering from near tile base ................
Third antenna segment coarctate (Texas).......... ipulchcriminia Back.
3. Anterior four tibita silvery-white pruinose; apex of each abdominal
segment of the female reddish...................... argyrata Curran.
Tibie not silvery-white pruinose: abdomen of female wholly black
(U. S.)................... ..................... ..... icr Back.

Townsendia argyrata Cirran

1921. T'ow-,iscntdia orlyrata Curran, American Museum Novitates. No. 220, p. 1.

The type series consists of a male, Luquillo National Forest, February
iS, 1923. and two females from Coamo Springs. JIune 5-7. 1915.

Onunatius Wiedemann
Omnmatius ilarginellus Fabricius

17S1. Asilirs murgnicllns Fabricius, Spec. Insect., ii, p. 464.

One male, St. Thomas Island, August 2-4, 1917.
This species is distinct from that described by Say as tibialis, and the
species occurring in the United States which has been placed as a synonym
of mtrgyinellu.s must be known as tfbic als Say.

Proctacanthus Macquart
Proctacantlhus rufiventris Macquart

18:1. I'Procrianfth as. rufirentri.s Macquart, Diptera Exotica, i, (2). p. 123.

One specimen. Tortogueros Lake. Manati. February 20, 1923.

Erax Scopoli

One of the two species belonging to Erax. is evidently undescribed.
The two species are separable as follows:
Male with segments five to seven silvery white; female without white
pile on the front of the thorax.................. tortola. new species.
Male with segment five silvery on posterior half only; female with a
narrow anterior fascia of white pile on the mesonotum
haitensis Macquart.
Erax tortola, new species
belongs to the acsttauns group: Legs black, the tili:e bright reddish yellow
with black apices. Length (exclusive of ovipositor) 17 mm.
Male. Beard and mystax white, the latter with strong black bristles on the
upper half. Head grayish pollinose. Hair of the palpi and antennae black;
style longer than antenna'. Hair of the occiput pale yellowish.
Mesonotum grayish-yellow pollinose, the dorsal vitta with a very narrow
pale median line, in most lights becoming obsolete at the posterior fourth;







tCIL'XTI F]C S4URVE'Y OF P'ORTO RICO


lateral vittae in the form of two approximate, sub-rectangular black spots.
Pleura. pectus and scutellum gray pollinose, the latter mostly pale-haired, with
two llack or yellow bristles. Hair of the mesonotum black: of the pleura,
whitish.
Wings with faint yellowish tinge, the costa swollen and arcuate beyond the
auxiliary vein. the costal cell luteous; anterior branch of third vein with
slight indication of appendage near its base. Squamm whitish, with yellowish
border and fringe. Halteres yellow.
Second to fourth abdominal segments shining brownish, their sides broadly.
and the first segment wholly, gray pollinose; fifth to seventh segments silvery
white. Pile pale yellowish: on the incomplete apical fourth of the third seg-
Iment and the whole of the fourth except laterally, black; on the white por-
tions, very short and white. Genitalia very large, long. the lower appendages
almost as long as the upper, densely black-fringed below and apically; upper
appendages shaped as in slylatus Fabricius.
Female. Mystax with a few more blackish bristles than in that of male: p)os-
terior border of the mesonotum narrowly white-haired, the scutellum wholly
so. Wings simple, the anterior branch of the third vein with a distinct ap-
pendage. Ovipositor almost as long as the preceding four segments. Abdomen
blackish. the sides and segmental apices pale polliiiose. the hair black on the
third and fourth segments except the broad apices and sides, and black on the
terminal segments.

Type, male, Tortola, Virgin Islands, March 18, 19255: allotype, female,
St. Thomas Island. March 11, 1925.

Erax haitensis Macquart
1847. Diptera Exotica, Suppl., iii, p. 1SS.

Male and two females, Tortola. March 18, 1925; three males, St.
Thomas Island, March 11 and 12, 1925.

THEREVID.E

Two species belonging to the genus Psilocephola Zetterstedt comprise
the representation of this family. They may be separated as follows:
llalteres and legs wholly black; front long and very narrow: fourth pos-
terior cell broadly open.......................... monsis Curran.
lialteres yellow: tibie and first tarsal segment yellow with brown apices.
the two following tarsal segments with yellow bases; fourth pos-
terior cell closed a little before the margin of the wing. rc.rans Curran.

Psilocepliala monensis Curran
1!926. 1'silocephola mo nensis Curran, American Museum Novitates, No. 220.
p. 2.

Originally described from a single specimen from Mona Island, Febru-
ary 21-2G, 1914.








CURIHAJJ. INSECTS OF PORITO RI/'O


Psilocephala vexans ('ulrra
1920. ]'silocephal>t rexans Curran. American Museum Novitates, N.. 220, i. 2.

The type series includes specimens from the following localities:
Luquillo National Forest. February 18 1 1925: Ensenada, June 14-19,
1915; Arecibo, June 24-26, 1915; San Juan, August 2-3. 1914; St.
Thomas Island, March 13, 1925. and Mona Island, February 21-26, 1914,
as well as a specimen from Haiti.

E-m PIDII I-E

There are representatives of but five species belonging to this family,
one of them evidently undescribed.

Phoneustica Loew
Phoneustica flavida Williston
189). I)rop'tis flariduts Williston, Trains. Ent. Soc. London. p. .08.

Eleven specimens from Porto Rico: Mayagfiez. February 15-16, 1914,
and Coamo Springs, Julyv 17-19, 1914.

Drapetis Meigeni
Drapetis gilvipes Low w
1872. Druprlis. gilruipes L.,ew\, Cent. x, p. C1.

Male, C'aey,. May 30-31, 1915.

Syneches Walker
Syneches pusillus Loew
1Sl01. !lirache puisillus x Loew, Cent. i, p. 25.

Female, Barros, June 4, 1915.

Hybos Fabricius
Hybos electus dlaripennis, new variety
1902. Hybos circt s variety, Melander, Trans. Ent. Soc. Amer., xxviii. p. 247.

This is the variety mentioned by Melander in the reference just cited. It
differs from ekcctus in having the wings wholly hyaline.

Type, male, Adjuntas, Porto Riceo, June 8-13, 1915.

1lyhos spinlosus, new species
Length, 3 mum.
Male. Shining black: anterior femora brown, tips of all the femora reddish;
immediate nise of the posterior tibiam, the anterior fol'r wholly and the basal







,S'J'IEA'TI 'FIC S'UREY OF I'ORTO IICO


two segments of all the tarsi. yellowish. Face very narrow, antennae narrow.
the arista long and slender. Pleura thinly pale pollinose. Hair black or
brown, whitish on the basal three abdominal segments, yellow on tie pale.
portions of the anterior four legs, the hasal segment of the anterior four tarsi
with three or four long, slender bristles, the hair of the anterior legs rather
long. Posterior femora considerably swollen, on either ventral edge with a
row of short. coarse bristles. Ilalteres brown. Wings with a slight yellowish
tinge.

'Type, male. Adjuntas, Porto lIico, Tune 8-13, 1915.
Traces to triple.r Walker in Melander's key (Trans. Ent. Sue. Amer..
xxviii. p. 216), from which it is at once distinguishable by the largely pale
anterior legs and different genitalia.

DOLICHOPODIDR-E

DETERMINED BY M3. C. VAN DUZEE

The Dolichopodida' are represented by a relatively large number of
species belonging to several genera. They have been determined by Mr.
M. ('. Van Duzee, who has recently described a number of new species
from the material contained in the collection as well as from other islands
of the Antilles. In the keys to the species I have included those from
adjacent islands but records are given only of the species occurring in
the Virgin Islands.
KEY TO GENERA

1. Fourth vein not forked, sometimes bowed strongly forwards; meso-
notum usually conspicuously longer than wvile.................... 2
Fourth vein with a widely divergent fork and with a1n :appendage at
the bend: mesonotum as wide as loig; scntellum usually with four
bristles; arista dorsal ................................ Sciaipus Zeller.
2. 'osta extending to the fourth vein: crossvein silntuted well beyond
the apex of the first vein ........................................
Costa extending only to the tip of the third vein; crossvein usually
situated before the end of the first vein .............. Aymndcetus Loew.
Fo. Fourth vein very strongly bowed or bent forward to form a cross-
vein which almost closes the apical cell .......................... 4
Fourth vein with only a moderate curvature even though much nar-
row ed ................................ ........................ .
4. Arista plumose: face in both sexes wide............ Pelastoneurus Loew.
Arista pubescent; face of males narrow ................. Paracliuos Loew.
Arista dorsal. ...................... ..............................
Arista apical or nearly so ....................................... 7
;. Face with a median longitudinal groove bounded by rounded ridges.
]'lrygiollruirl.s Loew.
Face not sulcate .................................. Diaphoru.s leigen.








('CUR.IN, 1INECTS OF PORTO RICO


7. Ma1le genitalia extending far forwards under rile abdomlen.
Thrypticus low.
Male genitalia small, mostly concealed............................ S
S. Face of male nt most a little narrower than tie front: apex of male
abdomen usually with four stout bristles. .......... Diaphoris MAleigen.
Face of mnal usually much narrower than the front. tile abdomen
without strong bristles at apex.................... Chri tulis Aleigen.

('hrysotus Meigen

The members of this genus are among the smallest of thle Iolicho-
polidai and are found on leaves and grass, especially in the vicinity of
streams and swamps.
KEY TO SPECIES
1. Anteiinel wholly black or lbrowl\ n .................................... 2
Anlten:m with the nasail segment ts reddish .............. picticurni. Loew.
2. Femora w holly reddish or yellowish................................ :
At least one pair of femorla largely lla;ckish or Irown ............... 7
3. Hair of the ta domen yellowish ...................... lonyipe.s Van 1 )nzee.
IIair black or brown ..................... ......................... 4
-. 1'lenra yellowish....................................... fluor s. Alirich.
Pleura i en iee or blackish ........................................... 5
5. Palli small. never white...................... ..................... I
Pallii of the male very large, thin. white (Cuila). imonipQlpu.s Van Duzee.
C. Face O(f male with parallel or almost parallel sides.... inrisus Alihlili.
Fare of the 1inile' very roll1piloeii sly lna1llo\iedl ill tile middle.
miml tiicornrii.s Vainll I ilzee.
7. Front coex;o lackisli except their immediate api-es .................. i
Front coxie illm re tlan onlle-tlhird yellowish .......................... S
S. Ialpi thin, very large, yellow, with \whitish slihen (Cll anl).
miraiiinls Vanl 1.)izee.
'alpi small, normal, milky white ................. brcrifliiht Van D1 uzee.
9. Anterior four femora reddish (female) ............ c.rc.,aratls Van I nizee.
All the femora mostly green or black ............................. 10
10. Thirdl aintennlll segment as -long as tlhe hea'd...... rc.rxriitrul l.x Van IDlzee.
Antelnne mnlch shorter than the head .............................. 11
11. Eyes broadly separated on the face ................... ......... ... .. 12
Face extremely narrow, almost obliterated for part of its length
(male) ...................... .. ... ........... fulrohirt.us Van Dnzee.
12. Bristles of the thorax black........................................ 1:
Bristles of tile thorax reddish (female .......... futlrohiriis Van lz I ee.
13. Knob of-the l halteres Iblack ............................. c.riisus. Ahlrich.
Knolb of the ;hltereis pale yellowish ................ iiorri.sPo i VI li ti ee.

(Clrysotus pirticornis l.o(w
114. C('hr/solus picticorni. Loew, MAln. N. Amer. Dipt., ii, p. 18I1.

Male and female, San Jnan, February 11-14. 1914: female, .\djulntas.
.Tune 8-1., 1915: four females, Coamo Springs. .Tnul 11-19, 1914.







,CIE-'ATIFIC SURVEY OF I'ORTO RICO


Chrysotus flavus Aldrich
1890. Chry solts flarrus Aldrich, Trans. Ent. Soc. London, 1). 326.

Female, Adjuntas, June 8-13, 1915.
The specimen is not in the best of condition. I feel sure that it is a
Sypipyrcnas and not a Chrysofus.

Chrysotus inermis Aldrich
189). Chrysotus incrtmis Aldrich, Trans. Ent. Soc. London, p. .3:10.

Female, Mayagiiez. February 15-16. 1914.
There is also a specimen from Cuba.

Chrysotus minutiornis a Van I)uzee
1927. Chrysoltus in imlicorni.. American MIuseum Novitates, No. 2(2, 1. 3.

One male, Naguabo, March 7, 1914.

Chrysotus longipes Van 1)nzee
19127. Chrysotus Ion gipes Van I)uzee, American Museum Novitates. No. 262,
p. 1.

The type series consists of eighteen specimens from the following local-
ities: Manati, June Mayagiiez, June and February: Barros, June;
Coamo Springs, December.

Chrysotus brevitibia Van Duzee
1927. ChryUotus breritibia, Van Duzee, American Mluseum Novitates No. 22,
p. 1.

Originally described from a single male taken at Naguabo, March 8,
1914, by F. E. Lutz. There is a second male from the same locality,
March 7-9, 1914.
Clrysotus excavatus Van Duzee
1926. Chrysotus rc-riratlts Van Duzee. Bull. Iuffalo Soc. Nat. Sc.. xiii, p. 48
(1924).
Male, Aibonito. July 14-17, 1914; male and two females, St. Thomas
Island, February 23, 1925 and March 11, 1925.

(hrysotus flavolirtus Van Duzee
1911. Chrysotus flutrohirtus Van Duzee, Wash. Univ. Studies, ii, p. 95.

Male. M~anati. June 27-29, 1915; male, Barros, June 4, 1915; male,
C'oamo Springs, July 17-19, 1914; female, Arecibo, June 24-26. 1915;
female, Adjuntas. June ?(i. 1915.








CUI'RRA, IX-SECTS OF 'ORTO RICO


Chrysotus excisus Aldrich
IS96. Chry/sotus e.rcisua Aldrich, Trans. Ent. Soc. London. p. 325.

A male, Christiansted, St. Croix Island, June -1, 1 I11, is doubtfully
placed here.
(Chrysotus inorrisoni Van DInzee

192'. C(hr/tots nmorrisOti Van Duzee, Bull. ,ufii. Soc. Nat. Sr.. xiii, p. 37.

Two males, Aibonito. July 14-17, 1914; male and female, Coamo
Springs, July 17-19, 1914; male, Nagnabo, MIarch 7-9, 1911: male,
Barros, June 4, 1915, and female. Arecibo, June 24-26. 1915.

Diiaphorus 3Meigen
This genus is represented by but a single species.

Diaphorus simplex Aldrich
1896. Lyroncirus, simpler Aldrich. Trans. Ent. Soc. Londin, I. 3p3.

Male, Aibonito, .rulyv 14-17, 1914; male, C'agnas, May 2 8-2., 115;
male, Mayagiiez, .luly 21-29, 1914.

Asyndetus Loew

The two species belonging to this genus may be readily separated as
follows:
Posterior feimorn with two rows of coarse bristles beliw: tilbi. green,
with many coarse bristles......................... iinterruptus Loew.
Posterior femora with bristly hairs below: tibite reddish brown or red-
dish, with very few weak bristles................ c.riiqus Van Duzee.

Asynldeus interrupts Loew
1862. iapholrnus iit rriuplltus Loew, Wien. Eilt. iloMntsclr., v, p. 57.

Male, San Juan. February 11-14, 1914.

Asyndetus exiguns Van Duzee
1927. As njdctus cri iauiis Van Duzee. American Muselum Novitates. No. 262,
p. 4.

The type series (consists of four males and two females from Arecibo,
June 24-26. 1915.
Thrypticus Loew

The two species in the collection may be separated as follows:
Legs wholly ipale.................................... iolarcuas Vin Dnzee.
Femora green .......................................... frfiotcci-ilus Wheeler.








(ClEN TI7FIC SURVE'I OF POlRTO RICO


Thrypticus violacens Van Duzee
10'27. Ihr!lptirus r'iolaceiu Van Du)zee, American Museum Novitates. No. 202,


The original der.ription was based on a single male taken at Areecibo,
June 24-26, 1915. In the collection are males also from the following
localities: Aibonitr. July 14-17, 1014; Coamo Springs, July 17-19, 1914;
Mona Island. February 21-26, 1914.

Thryptitus fraterculus Wheeler
10S. A.lhanloliItoia, frilerculhts Wheeler. Psyche. p. 376.

Male, Naguabo, March 7-9. 1914.

Plagioneurns Loew
Plagioneurus univittatus Loew

1.57. Wien Ent. lonntsclir.. i. p. 43.

One male, C'ayey, Mar 30-31, 1!915.

Paradius Loew

The collection contains two species separable as follows:
Posterimo femora wholly reddish yellow ..................... alteroutlt Loew
I'osterior femorn broadly ]hri-wn l pically................. fcmoirtflus Aldrich.

Iaraclius alternans Loew
1864. 1'rhastonciruts altlcrno s Loew. Cent. v, No. 91.

Female, St. Thomas Island. February 23, 1925.

Paradius femnoratus Aldrich
1901. IPartclius femroralus Aldrich. Biol. Cent. Amer., Dipt.. i. p. 340.

Two males and one female, Mayagiiez, February 15-16, 1914.

Pelastoneurus Loew
PelastouinIrus aeqrualis Van Duzee
1927. P'cltstoucutrs oc(qualis Van Duzee. American Museum Novitates. No.
262, p. 5.

The types consist of a male and female taken at Adjuntas, June 26,
1925.
Sciapus Zeller

The members of this genus are commonly found skipping about upon
leaves, often quite far from water or damp places. In many of them the









CtR'RA.X, INNET'T OF I'PORTO P1f(O


wings are colored or otherwise ornamented. The majority (f the species
may be separated readily upon genilalic characters.

KEY TO SPECIES

1. Wings with sharply defined brown markings ........................ 2
Wings at most slightly infuscated ..................................
2. Anterior cox:e blackish ........................................ .
Anterior cox:e yellow .......................... nubilip(ei is Van linzee.
3. Bristles on the middle tibim of male scarcely longer than the tilial
thickness lnott more than twice as long in the female?) ........... 4
Middle ti lii; with three very long antero-dorsal bristles in Ilth sexes.
dliffsxits Wiedemanill.
4. Knio of the halterc.s reddish. ...................... digjifiiltat \Van 1 tizee.
Kncol of the hnlteres Ibrown ........................ leoI iardi Van I 17-ze-e.
5 n. Antenmne artly or wholly reddish or yellow......................... (
Alntenn;e wholly black k or brown ............... ................... ...
G. Thornx metallic green or blue... ................................
le'Iurl and lbroadl sides of tie nllsonllotumlll rusty reddish yellow.
dofl',lix Loew.
7. Base of the abdomen broadly yellowish ............................ s
Abdomen wholly green dorsally.................. pi)iiiaint Van V Dul zee.
S. Front, from dorsal view, wholly whitish pollinose. iinrctiuts Van In lzee.
Front, from dorsal view, mostly shining green ....... fln'ricorni. Aldric-h.
9. Lower section of the face without hair. ............................ II
Lower section of the face with fine white hair.... fricenirichri Vin 1 liuze.
10. Anterior coixe; at least one-third yellowish .......................... 11
Anterior coxse lack or green except the tip......................... 12
11. Costa with long, fine, curved ciliate hair......... cilicostaut s Van IDnzee.
'osta with norlilal appressed hair. ............... inrquatiins YVn IN zee.
12. l'ostet'ior four tibila brown ....................... clhr!l. spra.esias W walker.
Anterior four tibi.p yellowish........ ........................... 13
.13. Anterior tili-e with at most one unusually long bristle belindl; an-
terior tarsi of the male with coarse bristles and other ornamenta-
ti n ................... ... .... .... ... ............ .. :............. 14
Anterior tibi'e with two very long, slender posterior bristles. each of
which is almost half as long as the tibia: nnter'itor tarsi of the male
practically simple .............................. plNiiosIus Cotiuillett.
14. Second segment of the anterior tarsi with several coarse, short.
curved spines below (male) ................... olbiciliatus Van D uzee.
Front tarsi simple (females ................ ...................... 15
15. Anterior tibile with a very long fine bristle beyond the middle pos-
teriorly ................................... albiciliatt.us Van Duzee.
Anterior tilbite with ontly very short bristles....... chr(iiiysoiro 'aiist Watlker.

Sciapus nimbilipennis Van Duzee

1927. Psilopus ubiloipcianis- Van Duzee, American Museum Novitates, No. 2(2.
p. 7.







SCIENTIFIC SURVEY OF TORTO RICO


Originally described from a single male from Adjuntas, June 8-13,
1915.
Scialps ditfuslss Wiedemann
1831. Psilopus diffusus Wiedemann, Ausser. Zweifl.. ii, p. 221.
Male and female, Arecibo, March 1-4, 1914, and June 2'4-26, 1915;
male, Mayagiiez, June 21-23. 1915; female, Cayvey, March 30-31, 1915;
female, Manati, June 27-29, 191.5; female, Adjuntas, June 8-13, 1915.
Occurs also in Cuba, Jamaica and Haiti.

Seiapus digitatus Van Duzee
1914. SciapUs digitatuis Van Duzee, Can. Ent., xlvi, i. 391.

Male, Cayey, May 30-31, 1915.
There are also specimens from Cuba, Jamaica, Haiti and Dominica.

Sciapus leonardi Van Duzee
1915. Nciipues leonardi Van Duzee, Ent. News. xxvi, p. 19. (key).
1916. Sciompu.s leonardi Van Dnzee, Washington Univ. Studies, ii, 1p. SS.

Male, Aibonito, July 14-17, 1914; male, Adjuntas, June 26, 1915, and
male, Tortogueros Lake, Manati, February 20, 1925.
There are also specimens before me from Haiti and Dominica.

Sciapus dorsalis Loew
1805. Psilopus dors(lis Loew, Cent. vi, No. 85.
Male," Manati, June 2>-29, 1915; Aibonito, June 1-3, 1915; female,
Aibonito, February 10, 1925, and female, Arecibo, June 24-26, 1915.

Sciapus spinimanus Van Duzee
1927. I'silopus spionimainits Van Duzee, American Museum Novitates, No. 262,
p. G.

Originally described from a male from Sanchez, May 22-27, 1915.

Sciapus unicinctus Van Duzee
1927. l'silopuis uniciactts Van I)uzee, American Museum Novitates, No. 262,
p. i.
The type female is from St. John Island, March 10, 1925.

Sciapus flavicomnis Aldrich
1896. Gitlamptopsilopius flucicornis Aldrich, Trans. Ent. Soc. London. p. 342.

Male, San Juan, February 11-14, 1914.
There are also representatives from Jamaica.










Sciapus graeniliheri Van Duizee
1927. 'siloptts rlira iilchcri \'; lli)zll ee, Ent. News. xxxviii. p. T:.

-Male, Coanio Springs, July 17-19, 1914; fenmle, Mayvaiihez. February
15-16, 1914 ; female, Areciho, .1 uly 30-August 1, 1914: female, Jav u1ya,
January I, G191): female, Luquiillo Natioinal Forest. February 11. 1 :i.':
mile iad female, Tortoguertis Lake, Alanati, Februariy :0, l1t2:; male.
St. Jolm) Island, Matrch 9, 1923. and Itmale. St. Croix Island. March 2.
1925.
There are also specimens from Cuba, Jlaainca and IDominitZa.
Thi's species has previously been recorded as cr,,atlwlid W"iedelmalin.


11)27. l'xiopjiul iaciqiuli.s Van luzee, Aliieririal Mulseumi Nviltates. N. 2
1p. (i.

(higinally described ft'rmn a single male, 'Iharlotte Anmlie, St. Thbimas
Island. IJune 3 1911.

Sciapls chlrysonprsius Walker
iSil!. i'silopts rihritl'iiprtiitd.s Walker. IWst Dipt., iii, p. (046.
19)01. Pmiliopus .iliipes Aldrich, iol. Cent. Amer., i. p. :155.

31ale. C'rozal, J.uly 2, 191.; male, Nagualno, March -9. 1914: two
males, St. John Island, March 9, 1923 : male. St. Thomas Island, Febru-
ary 2:, 1925.

Scialus prulilosus Coqlllllett
1Li04. Nciopitsu pirui) o lsi Ci(quillet. lroe. l:nt. 8oe. W'nash.. vi. p. Is;.

Male, Aihonito, July 14-17. 1914; female, Adjuntas. June 8-1.3. 1913.
Occurs also in Dominica and Florida.

Seiapus alliciliatus \Van iDuzee
11927. l'.v'ilop it i n hiiliali.is \. n a Itzee. A, nweri<-anl Museum N(tvitten N(.. 2(12.
pp. !) and 10.
Three of the type specimens are from our region: TSan Juan, July:
3lona Island, Felruary 21-2G;, 1914: St. Thomas Island Novemlier 2-2.
1925.
()Ocurs also in Jamaica.

SYPii'Inn.E

This family is represented by a number of striking species, several of
those in the collection having been recently described by the author.


't RHA'. IV,'I;/'7'.' O/P' 1'O17'0 'RICO







SUIE-VTIFIC SURVEY OF PORlTO RICO


The genera occurring in Porto Rico and the Virgin Islands are separable
by the following key.
KEY TO GENERA
1. Humeri bare ......................................................
Iumeri pilose............................ .. ....................... 5
2. Abdomen more or less spatulate in outline............ Baccho Fabricius.
Abdomen oval or with parallel sides................................
3. Sides of the mesonotum bright yellow, or, if not, the face strongly
produced forwards ............................................ 4
Sides of the mesonotum not strongly yellow, or, if somewhat so, the
facial swelling is in the shape of a rounded tubercle (Ocyptaomus).
Baccha Fabricius.
4. Face somewhat receding, not distinctly tuberculate.
Allograpta Osten Sacken.
Face strongly produced in the middle ............... lesogrammna Loew.
5. Third vein deeply looped into the apical cell........................ 6
Third vein at most gently undulated; apical crossvein recurrent.
Volucella Geoffroy.
6. Yellow markings of the thorax composed of dense tomentum; no
pile beneath the posterior spiracle.............. Meromacrus Rondani.
Yellow markings of the thorax either of the ground color or due
to pollen ................. ........ ......... ... Eris li s Latreille.

Baccha Fabricius

All the species belonging to this genus have the abdomen spatulate in
outline or parallel-sided and all have quite large heads. Nine species are
known from Porto Rico and the Virgin Islands.

KEY TO SPECIES
1. Wings wholly hyaline or with only the stigma and costal or subeostal
cells basally brown ............................................. 1
Wings with an apical spot or cloud or largely brownish.............. 3
2. Face most prominent in the middle : upper lobe of the squannm with-
out fringe; knob of halteres brown : allula small. stenogastcr Williston.
Face produced below; upper squamal lobe fringed; halteres yellow:
allula large....................................... clau~ ta Fabricius.
2. Wings lightly clouded apically or with a sub-triangular apical brown
cloud ............................................. ............ 4
W ings much more extensively brown ................................
4. Wings only lightly infuscated apically, with a clear spot near the apex
of the submarginal cell; face receding, not tuberculate.
grarilis Williston.
Wings with a sub-triangular spot in the submarginal cell............. 5
5. Front yellow, with a deep black lunular spot........... ornatipes Curran.
Front blue-black..................................... incomnpta Austen.
G. Seutellum wholly yellow: wings wholly brownish lutens. lRiccho
species (condition imperfect).









rCr(7 IM, I. V'ECTS OF P'OTO RICO


Scutelluml whlllly blnck or lirownishi yellow ......................... 7
7. \WVin'gs w iolly I'ronwnish .............................. li s'cv1ula.. I oew.
W il s in ili e ]p rt Ihyuline ....................................... S
Ailonell lonllg. slightly clavate: face pale yellow. .. 1rlilnriv Fabricins.
Aliioiielln short aIlld rather ro)l'(Id: f]ite' dark yellow. usually with :1
,ilrk imedinulii vitta.................... .......... dliiiliiat Fablriiehs.

Barelia stenogaster Williston
LS.'-N.. Itrehl .' ny. rsff r W illiston. Trails. Ameir. lEnt. Soc.. xv, 11. 21:6.

Six specilflens-: Adljuintas, June 8-13. 191 : C(oaum Springs, June 3-7.
1)915: St. Tholias Island. Felruarv 22. 1925: St. Croix Island, Febru-
ary 2, 192.).
Baclcha clavata Fnlricius
171l4. 1N/rphlx chlra ltusl Fahrioius. Ent. Syst.. iv. ". 'ls.

Several spe('imlens fromi1 the following localities: Arecihl, June 24-26,
1915: St. Croix slandl, February 23, 28, 1925, April l. 192.5, March 3,
6, 1!92): St. Thiiinas Ilani, March 12. 192'3. February 24. 2-5, 1925.

Ia;ctliha ornatipjes C'urran
Fig. 4
191)7. Bnrhrlo oritipel ( Cu'rrlant Aiuericaii Al lusenln Novitates, No. 245, p. 3.

Originally described frimn a single male from ('a ye. May 30, 1915,
collected by F. E. Lutz and A. J. 3Mutchlir.






Fig. 4.- t-flt hI oirn tiies Cuirrnii. Hind leg of
mulll, posterior view.
(<'rll'tes.y of American Museum of Natural
Hiistor y.)






Baccha gracilis Williston
IS01. /Bairctlt, Ytrrills Williston, Biol. Cent. Amier., I ipt.. iii, p. ]34.

A single specimen, Luquillo National Forest, appears to be this species
but, as indicated in the key, the wings are distinctly though lightly dark-
cned apically. Otherwise it appears to show n1 differences.







.N'I ATI''I('c Nst I'r/E) .O0 I'PORTO RICO


Bacclia incompta Auisteti
1 l0. J11ritrho iuconiptll Au.stell, l'roc. Zool. Soc. .London. i). 147.

Three specimens: Adjuntas. lunee 8-13. 1515; I have also a specimen
from londuras. The species was originally described from Brazil.

Ba:chia species

)ne specimen front C(rozal, July 2, 1915. is related to capiliaii Loei
but has quite different abdominal markings and yellowish-brown wings.
Its condition is imperfect, but it evidently represents an ulnndescriled
species.
Bacelia cyliindrica Fabricinus
1781. Nyrphuiis efliq iririus Fabricius, Slmeies Inse.'t., ii, p. 42!.

numerouss specimens from the following localities: Arecibo. J.ly 31)-
August 1 1914: Maya-giez. .July 24-9, 1914, and Felbruary 15-. 1914:
uIquiillo National Forest, February 18, 19!25: -Mona Island, Felbrnar
21-26, 1914; St. John Island, March 9. 10, 1925 : St. Thomas Island,
February 24, 25. 1925 : St. I'roix Island. February t ?., 19!25 and March i.

Bacchla diniidiata Falricins
17S. Syrptus dimidiltui Fabricius, Spe'ies Insect.. iR. p. 4-34.

There are specimens in the collection from the following localities:
Aibonito, July 14-1 1511 : ('ayey, May 30-31, 1915 : Mayagiiez, July
21-929, 1914; Luqiillo National Forest, February IS, 1 .25; St. Croix
Island, March 2, 2, 1925 : February 21;, 19237: St. Thomas Island. Febru-
ary 22, 2:3, 25, 192'5, and St. John Island, March 9. 1!25.

Alloglrapta (sten Srlk(ci l

The two species belonging to this genus, contained in the collection,
were recently described ]ib the author. The following key separates the
known species.
KiY TO SPECIES
1. Iteropleuin lila ck on1 the bi west twvo n-thirils r i .r ................
'ite yellow spot on the sterlnoplelurn extenllds over the plternplelra to
connect with that on the hypopleura ..................... obliqual Say.
2. 1)ise of tlhe scutellut with :a Inrge. transverse, piosteriorly convex
blnck or brown spot ..................................................
Seutelluln wholly yellowish or dull orange with yellow border.
.roticai Wiedemianln.
:. Tip of oral margin lying lml nh above the lower edge of the eyes and
consideraildy mlorle 1rominlt en t tllan tle anteanllal l lase .............. 4









C('l 'ilA' IT/SE("'TS OF J'PORTO HIi'r


Tip of oral' iltlr.Jiii siuatll;it l but little above the lower cdge, of the eye.
not llore promllillelnt than the lnteillal base antl less prominenllt than
tle ol sih lre tulller le . . . . . .......................... .
1. Hair of tle anlerior tilhie wholly black: yel.lw liml on tlhe third ab-
ldoililnal seilnellt separl11iled froml thie hIse if the sellgmeit by lat least
its ow n w idll ......................... ............ colom bii CilIrnl i.
llair of the nilteriol. tiliim practicallyy alI yellow : ipaI lnld onil third
allloilinal seeineilit inly 11 lirrwly sileparate'd frlll the biase of the
sezinelit .................... ......................... .. .si ilix C'urran.
5. Sq1Uaiinr' brown except liiasally; front of male black pilose
fuli.sisqlliiini C('rrani.
Siiqunllu lit moiist slighlitly itnflseited: front of iniule yellow illose,
oftenl a few blilok hairs. ............................ i'rlistli ('iCurr1iI.

Allogralpta fiscis:iiallnia (C'iirri':

1927T. AllUirmpt1( f7A misq lma1tii/l ('lir'in. .\lllt'riin Muis'eimin Novitates. No. 245,
Ii. 1.

(riginally describedil on the liasis of five speciniiens from Einseamla,
.Tune 14, 191.5) Tortoal. March 18. 1)23: St. Thomas Islani, February
23, 192:25 St. ('roix Island, Feiruary 2(. 19'?: Mona Tsland, February
21-26, 1914. *
Allogralit:a vienuista 'iiiirr'ni

1927. Illo/rapta rcii.,,rst Cullanll. Anllrilan Mliseulll Nov\itates. No. .. 24. p5.

Described from St. ('roix island. Feliruary 2.5 andl 26. 1023.

Mlesogralinm Low \

This oenus is well represented in I',Poto li.i)o and the Virginil Islaii-
anlld most of the species are rather (Ollinioll.

KEY TO SPECIES

1. A yellow spot alio e the anterior coM:. .... ...... ....... ... 2
No yellow spot alIove tlh anl terior cox.i ......... .... ............ 5.
2. Thliirl ;nIl followinll segilleilts tf tihe alulmlilt'n witholit sub-lhsal
fascie. .................... .............................. ... .
Thil'd ail following a lidominai l segments reddisli with iinarrow sub-
basal Ilack fascia which is narrowly interrupted in the niihildle. tile
lilirlr eillds joillil to a pair of slenlldelr lledii l \vitta: whichli maly
h ever. be obsolete .......................................... polite Say.
2'. l'tclToplenl'i lpiactically all blnck, lever yellow colitigiuous to tile
yellow of the llesoplenrl : suelltel lll black with yellow liboer ...... 4
I'tel'rpilel.u'In inore thlln lialf yellow: sentellnllm wNIolly liiale.
ditll icmttma WViehllen aliii.
4. Iulnieri, a spot on tlhe nlotopleura a1d the lposterliolr alli. yellow.
rc'tic' l li.l C1rran.


.3 ^







N(tIN'.\ lTIlt'I NPR'tL' F I'(lTO RIO'ta


Lalterl'l Illll'ili of the, mesotll(ll lin yellow ait least in flolit (f tihe
slltu lre ......................... .................. florailf Falluriciuls.
5. Scutellull i oaille black with yellow miaorgin. or mostly shining ilineiL('i. 7
Sentelllu l mostly yellow. soletimlles rusty brownish o(11 til dise ior
with narro-w black base......................................... l;
G. Yellow of the third abdominal segment bearing on either side an
oblique onllllll-shlliped black spot: sla(e between tlie listelrior i-oxMe
and the splirlacle mliistly yellow......................... .lriniou ri Lr.w.
Yellow of third ;adliminial se-molniit with a longitudinii] dash of Ilick:
spe;C(' alive l iosterior coxter Inormaally lack ........ nii.sirtui FI'llriieus.
7. Middle fellor'a. nila usii lly the front feiuora ais well. with a broad.
]re-a;])ict l blalek Ihan: d............................... .r .iolore.tir CuIr'l; l.
Middle l indl allte'rior femora wholly yellow or tle formlllr with incoim-
plete ferriu.ginou lllands ............. .... ...................... s
8. Sides of the ll esoilotull y3ellow....................................... )
Only theil hlimieri and part of tlie posterior enlli yellow. Iba.ilurre W\ied'llialln.
9. Middle tillie lilan1 k-h1air-ed ill front; there is lno 1i1ack piroloiliiaItioii oIf
the posterior Ilaclk faisei;i at the lateral fourth of tlih thirl segment :
labdolmenl often almost wholly reddisl ............................ 10
Middle thitbi lusmillty wholly jIale-11aiied; tile lanteral posteriolr lack
alrent on the segmlelits is connected at its inner corilner" to ihe liase
of the segment iby an anterior prolongation or triangle.. picti Mt'jiutrt.
10. All the feluorlai ullnsually swollen atnd with nlnsuiall]y Inllg iile: a ldo-
lilen. except the list see-ment. shining reddish ...... rufc'iitli ('Irlill'n.
Fem'ora only a little swollen. with normal pile; at least the second seg-
itenlt nalw As willh bierni laick triangles. ............ I.rr.ifcr.i loe\w.

Mlesogramma polite Say

182". Rctcrai poliitt Say. Journ. Acad. Nat. Sei. Pliiln., iii. p. S".

I have seen specimens from Porto Rico although the sl'ecies, is lnt
represented in the collection.

Mesogrammi a diuplicata AWiedemann

1530. S!l rphst di71 lic'htils TViedlemalnn Ausser. Zweill.. ii. ip. 142.

Replreselnto by specimens from the following localities: Rio Pieclras,
February 12, 1925 : ('oamo Springs, July 1-19. 1914 : Aiboiiitt. June
1-3, 1915: Caguas, Mavy 28, 29, a1915 : Manati, March 5, 1914, June 2 -29,
1915: Adjuntas. .June 9-15. 1)1-5: Corozal, July 2, 19115.

Mesogramina vertiralis (rralla

1927. Jlc snolr ittlllil rertlicrl.s Curnin, Americiin M1ns(nin Novitates. No,. 245,
K p. 6.

Known o01vy frt m the type male, CnoNy, May 30-31, 191-5.








('RRANX, INSECTS OF PORT70 RI(CO


Mesogranina florale Flabricius
1798.. Scucca florlis Fabricius. Entom. Syst., p. 50..

Numerous specimens from the following" localities: Aibonito, June 24-
G2, 1915; Aldjuntas. June 8-13, 1915; Arecibo, June 1-3, 1915; Barros,
.Tune 4. 19153 ('nuas, liav 2S-2!1 19)15: 'oanio S]prin)s, July 17-19,
1!14 : Ensenada, Juine 14-19. 1915 : Alanati. .une 2 -29. 1915: Mayagiiez,
February 15-16, 1914; Quebradillas, June 23, 1915; San Juan, July 1-5,
1915, July 9-12, 1914: St. John Island. March 9, 10, 1925: St. Thomas
Island, February 25, 27, 1925.

Mesograinia laciniosa Loew
1S6;5. .Ilsogrninat luthciiuosa Loew, Berlin Eut. Zeitsclr., ix. p. 159.

Not in the collection: I have seen specimens labeled Porto P ico.

Mesogranimma musicus Fabricius
S805. Seacra inusicnts Fahricius, Syst. Antliat., p. 253.

One.specimen, C'orozal. .luly 2, 1915.


Fig. 5.-11esoy!rrminl riol,,rea Curran. Profile of head, male.


lesograimna violacea Curran
Figs. :. 6
10)26. .lMsoraulmu(i riolaera Curran. in C'at. Insect. Jnmanicensis. (sep. edit. p.
2, July 1), p. 103.







SWIIEV'Iqr'L (-Ii OF 1OJ1l7'0 RICO


Fil. C.-.lle/s ogif, nu u rq, q ''rran. UIc]~ men ,f mla e, dorsal Ivie.-a








(UJJAXI~, IA iEC'JNP (l' I'ilT() JI(I'O


Ieprcesented frhon the following localities: Adjuintas, June 2G, 1915
and June 8-1.. 191,5; Ail)onito. February 10), 1925: Areciho, March 1-4.
1911: Jayuya, January 8, 1915; Mayagiiez, July 24-29, 19114 ; Naguabo,
March ;-9, 1914 : Luuillo National Forest. February 18, 19125.

Mesogralmna arcifera Loew
1 i;5. J l'rs. rinrniiiu airrcifcro Loew, c .li-riln Ent. Zeits'lir.. ix, 1p. 1;l0.

NXumerous speciienes: Aibonito, July 11-11, 1914. February 10, 192":
Arecibo, June 21-25, 1915: July 30-August 1914, March 1-4. 1914:
Corozal, July 2, 1915; Luquillo Xaticinal Fcrest, February 1V, 18, 1925:
Manmeyes, February 1, 1925 : Manati, June 2;-29. 1915 : Mlayvagiiez. June
21-2?3, 1915: Nagualo, March 7-9. 1911: San Juan, February 11-14,
1911, July 1-5, 1915: Jayuya, Janvary 8, 1915.

Mesogranuima Iieta M;qllllart
1S42. Syrpil .u pirtihN Macsquart. I ipt. Exot.. ii, 12). pi. 9l..

There are specinwmns from Aihonito, July 1-1-1;. 1914. and C'lrozal.
July 2. 1915.

Volucella (eoffroy

The species recorded from Porto RHico and tie Virgin Islaiids are
separated in the following table.
KEY TO SPECIES

1. 3let:allir green. usually with viol;ic'wolus or blishils ritfloctiions.
ob l Flabricius.
Not metallic green ............................... ................. 2
2. Large lnaekish species, the abdlonllen with \vio llareons reIloertiuons: wx lllly
dark ............................................. ca Ir cni WT illiston.
Abdomenii with at hleit the Ibase ibri; llIy iale........................ .
WiliKs imore o r less sotroiigly ftscmiate with I'I- wn i .... unii(Opincttlti ('cirran.
Wings will only the small stiglmal spot Ilacdkisl; scuamne yellow:
ptlr-a4lpicnl s'ntelolar depression present............ pillJch s Wie'lllini:lli.

Volucella obesa Fablriiusis
1775. SN rphuil s obtsi. Falriciuns, yst. Entiilm., p. 71;:.

Numerous specimens from Porto lico: Aibonito, .lune 11-1;, 1!114:
.June 1-3. 1915: Naguabo, March 7-1, 1914; Maricao, July 27, 1914:
Maiati, June 2-2!1, 1915; umerio, July 1915; San Juan, July 1-5, 1915: ('ayy, May 30-31. 1915;: Malneyes,
November 19, 1925.








SCIEU 'TIFIC SURVEY OF P'ORTO RICO


Volucella uniptllutata Cm'ran
1920;. oll' CellaI 11Jnipun1c/li 't T Currani. AlIn., Ent. Soc. Amer.. xix, p. G;3.

Originally described from I)e.echeo Island and Ensenada, Porto lico.
There are specimens in the collection from the following localities:
Tortola, March 18. 1923: St. Croix Island. March 2, :, 1925; St.
Thomas Island, February 25, 1925.

Volucella Ipllens Wiedeil1anln
1S30. fIolucclla pallcas Wiedemann, Ausser. Zweifl., ii, p1. 204.
Male and female, Luiluillo National Forest. February 17, 18, 1925.

Eristalis Latreille
The collection contains four species belonging to this genus.

KEY TO SPECIES
1. Anterior four femuo;r wholly reddish or only ferruginous basally.
vilctorumL Fabricius.
All the femora mostly black........................................ 2
2. No pale prescutcllar fascia; pleura almost wholly black pilose.
atrl'im t(u Loew.
A pale pollinose pl'rescutellar fascia: pleura almost wholly pale pilose. 3
3. Front of female whitish pilose on lower fourth or more.
albifronos Wietdemlnn.
Middle of front black pilose on its whole length ...... cu'bclni.s Macquart.

Eristalis vinetoruni Fabricius
179S. Syirplhus vinetorum Fabricius. Ent. System.. p. 562.

Numerous specimens from the following localities: Tortogueror Lake,
November 19, 20, 1925; San Juan, July 9-12. 1914. July 1-5. 1915:
('atano, January 3, 1914; Adjuntas, June 8-1.. 1915; Ensenada. J une
14-19, 1915; Cayey, May 30-31, 1915; Caguas. May 28-29, 1915;
Naguabo, March 7-9, 1914; Maricao, July 27, 1914 ; Mayagiiez, February
15-16. 1914: July 21-29, 1914; Coamo Springs, July 17-19, 1914. June
5-,. 1915; Talaboa, near Ponce, July 2:3. 1914: Manati, June 2,29,
1915; Aibonito, July 14-17, 1914; St. Croix Island, May 5, 1919. August
253 1917, March 7. April 10, and November 20. 1925; St. Thomas Island,
March 12, 1925; St. John Island, April 10, 1925.

Eristalis albifrons Wiedemannl
1's:,. Eristalis albifrons Wiedemann, Ansser. Zweifl., ii, p. 189.

Three females: Luquillo National Forest, February 18. 1925: Tortola
Island. March 28. 1925 and St. Thomas Island, March 12, 19;25.








CUIRRA-I, INXNCTN OF 'ORTO IlCO


Eristalis cubensis M:laneartr

tl'42. Eri.hstulis cubensi.- Mancquart. Diptera Extot.. ii. i2). p. 42.

One female, lanati June 2 -2!9. 1913..

Eristalis atrimana Loew
1',(15. Eristilit. ti'imttan Loew, Berlin Enttiti Zeitschr.. ix. p. 167.

Male, Aihonito, Porto Rico, June 1-3, 1915.

Meromacrus Rondani
Meromacrus lpratoruin Fabric.ius
1775. ,Yirphus praotorum Fabricius, Syst. Entnii., p. 705.

One specimen, St. Thomas Island, Febriari 22, 1925.

PHOIID.E

There is in the collection but one species. beloiinin, to the penus
Megoselida Iinnilani. representingi this family.

3legaselida scalaris I.ew
Il sG'. 'Phora .slnris. Loew. Cent., vii, p. 100.

More than forty specimens from -lona Island. February 21-20, 1914.
There are Iefre me also specimens from Domlinicai. Janaica and Cuba.

PIPINXCrLID-E

There are in the collection three 4speciinen belonging to three different
species of Pipliculrls I atreille. Twoi of the specimens are without heads
and therefore cannot be definitely determined. One of these appears to
be undescribed while the second may be the same as a species recently de-
seribed from Jamnaica. The third species is characterized below.

1ipiiunculus Latreille
Pipulncllus regalis, new slecieOs
lilnek; stigma ]rxlnii; altennlie black, the third s-meifent yellwvish brwiin.
produced downwxards into a long, tapering point: abdomen blinowinish ])pllinose
above, grayish io the sides and base; legs black. Length. 2.27. min.
Female. Fcee and lowest fifth of the front silvery white: front shining
black, widest at the uplier third, with a distinct longiturinatl median groove.
4)ceiput grayisli-wlite pollinose, very thinly so aIbove. I.ahelhe and pllpi red-
dish yellow. Arista thickened on less than the basal sixth.
Thorax moderately grayish pollinose, the disc of thle miesmootlum brownish;
a white spot located inside either lhumerus: umneri yellow. Scutellni shin-
ing Iliack, thinly pollinose on the basal half. with inco nspieuous marginal hairs.







$( 'ItI:\TIFIt' NRivI'Y OF f'POTO RICO


I.egs bilak. ,gray pollinose: tips of the feloran ndl the broad bases of the
tibiae yellow; tips of the tilbi: a;ind the lnasal twyo or three tarsal segments
brownish red.
Wings almost pure hyaline; anterior erossvlin situated slightly beyond the
tip of the auxiliary vein: posterior croIssvein slightly longer thinn the ultimate
section of the fiftl vein, straight. a little obliiue: ultimate section of the
fourth veii straight. Squam: yellowish. lHalteres blroVwlisli? (the knob
missing).
Abilomeni shininiig black on the disc, thinly browiish pl llinlse, tlie lasal and
apieal segments and the broad nlateral margins grayish polliinose: genitalia
very thinly grayish pollinose, the piercer longer than tie basal sub-globose
section, reclhillg almost to the lase of the third abdominal segment. First
abdominal segment with three lilak bristles Inlirally, the abdolen elsewhere
apparently without hair.

Type, female. Alaiiagiiez. l'irto Ricm, February 15i-I, 1914.


('1LooriOD.I.

IThis fannilv is very well representeil in the collection andt a number of
new forms have been described from the material. liThe, six genera repre-
sented may be distinguished by the characters given in the following key:

TABLE OF (ENESRA
1. Costa extending to tle fourth vein ... .............................. 2
Costa ending at or slightly beyond Ihe tip of the third vein; posterior
tibi;p \willl large. oval sensor r arena ............... ('lilorolpiscn Loew.
2. P'osterior tibii, with a strong, curved apical spine.................... :i
Posteritor tibi;e without such spine ............................ .......
3. Sentelluln elongate, the disc flattened ; front with strong orbital
bristles ...................................... Prohippeir la cs' Mallocll.
Scutellul normal. convex : rl'bta is vney weak .......... Jlippelatxlcs Loew.
4. Arista tapering. bare or pubescent .................................. 5
A'rista broadened and strap-like in appearance.... Elachipleru Macquart.
5. I'Prolioiss elongate and horny, with the terlilin.l. folded-bnek portion
three-fourths as long as the preceding section.......... M.Jdiza Fallen.
Proboscis shorter, the fohled-back portion rarely more than half as
lonl as the preced ing section ........................ Buiotin biti Liy.

Chlorollisca loew

There is lnt a single species representing this genus.

('hloroplisca atra ui rran

192I;. ('loropisc.o utrii Curran. Amer. 31ns. Novitates, No. 221. p 3.

Only the type female, Areeibo. l-ime 214-26, 1915, has been seen.








(-R'(ti.LV. /.X'I'ET, OF 1'ol1'0 RI /CO


Prohliipelates Malloch

The' genIus is represeintcd by on1l a single species.

Prohippelates pallidus I.new
IGs;i. 11ippilat(c. pu/llidt. Loew, Cent. yi. N. :.

One spe/inmen from Mona Island, February ?t21-26. 191.
Originally described from Cuba.

Ilippelates Loew

A large prIprtion 4f the species of ('hloropida' ocurl'riing ill 'orto
lico and the Virgin Islands belo-g to this genus.

KEY TO SPECIES OF H IPPELATES AND I'ROflPl'PELI.ATEs

1. Front with short, hair-like orlit;lls ................................ 2
Front with stro1 n orlbital liristl.s: sritelltnll l al ;llt a 1ove: wholly I)le
except the Slmli l bro'wnt oce:l ir spol .................. I'. pIllidus I. Loew.
2. Seutellumr wholly or partly yellow....................
Seutellnm w holly lack ....................................... ..... .
3. lesonotullt bl .k, usalll y pollillse .................. ............ 4
AMlsonotllni rather sli'liiii rledlishi. somllitillls with three slellderl
brownish vitt:w. rarely with a lbroadll mleiililI black vitta a11il oIle or
two slots (O either side ........................................ ;
4. l'leura mostly or wholly blrownl: vertical trlia:llale lirowl: inllesollotun
lle'ver yellow Iposteriorly ......................................... .
IleInrla i:le onl upper half;: plosterlir l ol'er of le~s1oll otlili1 yellow:
only the cellar triang((le black. .................... ldor-.it5 \\'illiston.
5. Spuir of posterior tibia situated half its length fro ll till apexl of the
tibin: sctetelluni not black o1n m1ore thall the hiasl] fourth
in44ipiecis C'nrra i.
Sp1ur of lostelrior tiIi;' sitlilte(d about o(le-fturtlh its length from apex
of tilbia: scutelluml lack on liasal half......... .xrctl0llt ris Williston.
G. Oeollar trialngle shining brownish red. shlarply d tfined.. t4c'//r ('oquillett.
Ocellar triangle reddlish yellow, poorly (letinell. ......... i.mprl) .Sti.s Hecker.
7. 1'osterior half or more of the llesono10tn1 or at least the lnotopleura.
tlickly pollinose4 ............................................... S
Mlesollotlill not pollinose on illore thin tlie posterior third, tlie noto-
pleurn always devoid of poll n .................................. 11
S. [esollotullll selling; a lprescntell:rl fas1ci:a. llto4plellia a111l Ipterop)leurn
gr'tyislh 1ollinose i: interior eox; black. ............ .. I ilrirf.rtt Mlalloelh.
MIesonlotnil ollinlose on at least thle l~sterior l :llf. .................. .
S. 1Mesonotunll wholly pollinos................... ..................... 10
3[esoio41ltunI roa1lly 11 shinllg l in front (sometimes ill deluded spec4i-
Illmens largely s1iilli I. except posteriorly) : lie 1pleurna an111 1tero-
pleural pIollillnse; front c(ox;e 1orma1lly yellow. .......... c//'n .riS.f ILoew.
10. Thorax re(ldisIs brown: vertical triangle shi nin except the o('ell:r
spot ............................................... trcm r Coqluillett.







NCIE'T\ IFIC 't N i f,'v OF1' I'o'70'o 11('o


Thorax blackish: vertical triangle will three shining black spots,
elsewhere lp lliinse ..................................... lnobilis Loew .
11. Only three rows of hairs between tile dorso-central punctured rows. 12
At least four rows of hairs between the pLunctured vitt a ............ 15
12. At least a complete row of hairs between the central and dorso-cen-
tral rows ....................................................... 13
I()ly a few weak hairs between central and dorso-central rows: sides
of vertical triangle straight...................... d ii ifroniis Malloch.
13. Pl'sterior femora and tibim black on apical third or more: vertical
triangle acute, rarely a little reddish in front........... illicit Curran.
Legs whl lly pale ....................... ......................... 14
14. Anterior half of the acute frontal triangle yellow......... partitus Becker.
Frontal triangle wholly black. its sides convex auteriorly.. flouipcs Loew.
15. Legs entirely yellow or with the posterior tibi:e and tips of the tarsi
ilmore or less black ............................................ 16
At least the posterior femora partly black.......................... '2
10. Frontal triangle largely reddish or rusty red. its middle with a black
triangle, the sides concave anteriorly; tiike wholly pale.
prltiin ul.s Becker.
Frontal triangle wili11ly shining black or marked with yellow ante-
riorly. or tie posterior tibite largely black........................ 17
17. Abdomen largely black............................................ 18
Abdomen entirely pale yellow............................ lulit Curran.l
1q. Posterior tibi:e broadly yellow at both ends or wholly yellow, the
frontal triangle reaching almost to the anterior margin of the front. 19
IPosterior tibiat black on the apical two-thirds or more: mesonotum
with longish white hair: frontal triangle reaching to the anterior
third of the front .................................. 'pecruani us Becker.
1). At most the anterior fifth of the frontal triangle yellow.............. 20
Anterior half of frontal triangle pale yellow.. ...... partitls Becker.
20. Frontal triangle reaching only to the anterior fourth of tie front or
convex on the sides ............................................ 21
Frontal triangle reaching almost to the Innule, its sides concave
anteriorly ....................................... bicolor Coquillett.
21. Sides of the vertical triangle convex anteriorly. .......... flaripcs Loew.
Sides of the vertical triangle almost straight, the triangle reaching
only slightly Ieyond the middle of tie front.......... collisor Curran.
22. Posterior femora and tibi- black on apical half or more............. 23
Posterior femora broadly pale apically and basally, their tibiae
wholly pale........................... ....... .......... pusio Loew.
23. Posterior tibi:e blackk on apical liilf, without sensory area. upicatu 3Ialloch.
Posterior tibia, wholly pale. with elongate, dull sensory area on the
postero-dorsal surface near thle middle .............. per/,nus Hecker.

Hippelates dorsatus Williston
1i;. IIippelales dorsatus Williston. Trans. Ent. Soc. London, p. 419.

Three specimenes from Mona Island, February 21-26, 1914.








CURIR.IN. INSECTS OF 1'OJT(O RICO


IIippelates ineipens 'urran

Fi-. 7

192i. Ilippilutcs incipiens Curran, Amer. Mus. Novitates. No. 22(0. p). 3.

Described from two females: Naguabo, March 7-.9 1914, and (Cuamo











S,' \ i

-A










Fig. 7 extreme left).-Hippelates incipiens Curran. Posterior tibia.
Fig. 8 (second from left).--lipiclates illicis Curran. Posterior tibia.
Fig. !i (second from right).-Htippclates lutzi Curran. Posterior tibia.
Fig. 10 (extreme rightJ.-lippielfaths coillasor C'urraln. Posterior tibia.

Ilippelates scutellaris Williston

1SH9;. Iippcl tes scutellaris Williston. Trans. Ent. Soc. London, 420.

One specimen from Adjuntas, June 8-13, 1915.

IliIpelates tener Coquillett

19(I0. Hlippclate.s lcner Coquillctt, Proc. U. S.. N. M., xxii, p. 205.

One specimen from Arecibo, June 24-26, 1915, and one from Mona
Island, February 21-26, 1914.

IHippelates impressIs Becler

1112. ]lipplchilelca imprer'ss ,s Ietcer, Annales MIus. Nat. Hung., x. 1'. 191

Fourteen specimens from Desecheo Island, February 18-20, 1914.
The color of the mesonotumi is somewhat variable.







, s ,C' Ic \ 'I' /FAI c' 'eI L IEY OF 'POR'/'O RICO

Ilippelaies nigricoxa MalJr1,11
1S11:1. llippcltlfcs nigricirl a 3Malloch, Pro i . .N. AM.. xlvi. 1. 25-i).

Nineteen specimens front the following localities : Ad.juntas, June 8-13,
i1. : Areciho, M1arch 1-4, 1914: Barros, Jiune 1, 1915; :1anati. lunee
27-29. 1915 : Mayagilez, Febriiary 15-0, 1914; ('Conio S'priiwgs, Jily 1-
19. 1914: San Juan. February 11-1L-. 1914: Charlotte Amalit., St.
Thonmas Island, June :. 1911.

ilippelates convexus I.oer
iS3Il. Ilipp)clatefc conlrcit .ri loee \. Cent. vi, No. 94.

umneru cis specimens from the follwiing localities : Adjuntas : Arecil),,
.lune 21-20i, 1915, March 1-1, 1911: gunsun, May *v8-29, 191): C'ayey.
Ma v 30-31. 1915:' C'onino Springs, .inly 17-19, 1914: 1Manati, June -2-29,
1915;: Ma\-agiiez, February 15-10, 1914: San .uain. February 11-14,
1911: .uly 9-12, 1914: MA in Island. February 21-20, 1911: Charlotte
Amalie, St. Thomas Island, June ay, 1911.

Hilppelates nobilis Lo(ew
16:';. Ilippcli(tcs Iobills. L(oew. Cent. iii. No. 67.

Three specimens: Aibonito. July 14-17, 1914: Adjuntas, June 8-13,
19153: Areciho, Jmne 24-20. 1915.

Hippelates nudifrons Mallhicl
191l:. Ilippchltes nuldifron. Mailloch. Pre. '. S. N. Al., xlvi. 242. '4.

This species is not represented in the collection. One of the type
specimens is from Vieqnes Island.

Ilippelates illicis ('crran
FiS. .S

192). Hiippelatcs illiris Curran. Amer. Mus. Novitates. No. 220. p. 4.

The type series: Arecibo. June 24-26, 1915): Charlotte Anmalie, St.
Thomas Island, June 3, 1911, and Mauiati, March 5. 1914.

Hippelates parlitus Becker
1912. ltippelafti partinitus Beeker, Annales Mus. Nat. Hung., x, p. 89.

One specimen from Aihoinito. July 14-17, 1914, agrees with the de-
scription.







('CI: ALN, INSECTS OF PORTO IRICO


Hippelates flavipes Loew
186.S. Ilipp'liaes flavipes Loew, Cent. vi, No. 95.

Repjrescnted by specimens from the following localities: Arecibo, June
24-20. 1915; Barros, June 4, 1915; San Juan, July 1-5. 1915; Mona
Island, February 21-26, 1914; Charlotte Amalie, St. Thomas Island,
June 3. 1911.
This species has the frontal triangle convex on the sides anteriorly
according to a type specimen before me, and the specimens referred to
flavipes by Becker and Malloch are a quite different species-evidently
the same as that which I have described as rollusor.

Hippelates periuanis Becker
1012. Hlppll'lrlcs pcrua ins Becker, Aniales M1us. Nit. Hung.. x, p. 170.

Eight specniens : Arecibo. June 24-26, 1915 : Jayuya, January G. 1915;
San Juan.. July 1-5, 1915 : Adjuntas, June S-13, 1915; 'hristinnstcd, St.
Croix Island, June 4, 1911.

Ilippelates lutzi ('urnrin
Fig. 9
1926. IippcIltces lutzi Curran. Amer. .u. Novitates, No. 220, p. 5.

Tlhe type specimens are from Mona I;land, Feliruar 21-26i, 1914.

Hilippelates hicolor ('oiquillett
1900. Hiippcaters bicolor Coquillett. Plro. U. S. N. 1.. xxii. )-.

Specimens from Manati, March 5, 1914; Mona Island, February 21-
26, 1914: ('harlotte Amalie, St. Thomas Island, June 3, 1911.

Hippelates collusor ('Curan
Fig. 10
12(;. IlHippcltes collusor Currnn, Amer. iMus. Novitates, Nio. 220, p. 4.

Originally described from the following specimens: female, Charlotte
Amalie. St. Thomas Island, June 3, 1911: female. SManati. March 5,
1914: female, Mona Island, February 21-26. 1914.

Hippelates pusio Loew
1872. Iippcllats poisio Loew, Cent. x. p. S7.

Six specimens: Arecibo. June 2 4-26. 1915 : Adjuntas. June S-13, 1915;
Ensenada. June 14-19, 1915: Mona Island. February 21-26. 191-1.







C1H'A TI 1FIC SURVEY OF PIORTO RICO


IIippelates apicata Malloch
1913. HJippclates apicata Malloch, Proc. U. S. N. M., xhli, p. 24S.

Four specimens: Alona Island, February 21-2l;, 1!ll4: Charlotte
Amalie, St. Thomas Island, June 3, 1911.

Elachiptera Macquart
There is only one species in the collection belonging to this genus.

Elaehiiptera flavida, Willistun
189(. Elachiplcra flarida Williston, Trans. Ent. Soc. Lonlon, p. 417.

A single female, Cayey, May 30-31, 1915.

Madiza Fallen
The two species belonging to this genus have the thorax black and the
tibia mostly yellow. They are separable as follows:
1. Mesonotum grayish pollinise with five brownish vittre.
qiiiquiliac/ila Adams
Mresonotum mostly nnd the nesopleura and pteropleura shining black;
tilim and tarsi, except their tips, pale yellow........... malttl Cunrran.

Madiza q(uilnquiliheata Adams
1904. Siplionella quinquilineatat Adams, Psyche, p. 104.

Several specimens from Manati, March 5, 1914: Coamo Springs, July
17-19, 1914. and St. Thomas Island, February 23, 1925.
Some of the specimens agree well with the description except that the
middle tibia are never brownish, while others have the front wholly black
and the mesonotal vittm are rather cupreous. Without specimens from
the mainland for comparison it seems unwise to consider these specimens
as other than quinquilineata, especially since some of the species vary
considerably in the color of the legs.

Madiza matter Curran
1926. Maidiza mattcu Curran, Amer. Mus. Novitates, No. 220, p. 5.

The type male, Adjuntas, 'ort, lir.. June 26. 1915. is the only speci-
men recorded.
Botanobia Lioy
KEY TO SPECIES
1. Front femora wholly yellowish or reddish.......................... 2
Anterior femora partly or wholly black or brown .................... 12
2. Second costal section at least slightly shorter than the third........ :.
Second coastal section longer than the third.......................... 4
3. Antennm and palpi wholly black or brown.............. limilata Becker.








CUHiR 1N, INSECTS OF PORT RICO


Alltetllne largely, the palpi and scutellnin wholly, reddish yellow.
n tzi C'urran.
4. Frontal triangle black, gray pollinose (ir at least nt polished ........ 10
Frontal triangle a not pollinose, polished .............................. 5
5. Frol' t wholly black oir rllowii: anterior anld posterior tili: l; brownish
except basally....................................... ........... .
Front broadly reddish or yellow ltiteriorly. ......................
6. All the femora reddish .............................. tt (non !mr a \Villiston.
Middllle an] posterior femorn mostly blackish ...... .o elnyou1tt r p]tor ('ICrran.
7. Middle and posterior femora black except the Iase and tip; interior
tilii: mostly, their ltari wholly, blrowt isil ............ dircpr xipr ('cIrrai.
Mlildle and pl)osterior femora yellow or tlhe anterior tibi: wholly pale
yellot w ............................... ... ......... .......... ..
S. I'leurnx wholly black: anterior indl pPosterior tibiw ibroiwnish.
paillitlfa t( 'ui'ran.

I'leura partly or wholly reddish yellow. .............................. 9
0. Thorl:x shiniilg lreldish, the lmesonitinll aouP/wnllhat dairkeiied toni the
disc. usually lll lore or less distinctly hi- or tri-vittate: all the feoiran
reddish .......................................... itfusat ManI ellh.
Alesoniottiu black. rather thickly pollillose: posteriorP felll'oral mIostly
Lack .............................................. x.ic tri.c ('urran.
10. All the abldominal segments with collnspi'iousll apical Ipale yellow
fasciae; front, except le triangle, \wholly relddish yellow, mott ('nrran.
(iIlly the terminal l aIdtnill:ll segminelt yellow apiclall : fl rollt nlmore ior
less brown opposite the triangle .................................. 11
11. Triangle reaching little more than one-third tile distance to tihe
lunuile, witithout shining slots............. ........... maritS ('urran.
Trimngle reaching half way to the luniile. with a shilinii. slt in front
of the lanterior anld cutsidoe eaeh lateral ocellus.... tripmtidala Curranl.
12. Front wholly black.................... .......................... 1
Front broadly pale an teriorly...................................... 14
1:.. Triangle reachlling the anterior third of the frolin : anterior tarsi lbrown-
ish .................. ................................. plsii C'rra.
Trinugle reaching only a little beyond the middle of the front : anterior
tarsi pale yellow ................................. ois r a ct Co -1. I'alpi long awn prIojecting well beyond the oral margin in repose.
yellow; coix-. blackk: ;all tlie tibi: with blackish lands; triangle
reaching anterior third of the front........... ma)lnipailpoids C('arranii.
Palpi nlornli, not projecting from the oral margin ill repose........ 15
15. 'Trianle p nrn s:ing silvery in soine reflections ......... .. a .S Cuiiiii rraln.
Triangle shining laek............................ .. ............ . . .
10. Iumneri pollinose: parafrontals gray pollinose above................. 17
lhumeri shining; parafrontals above narrower than wldth of cellar
triangle, with parallel sides on the upper fifth ...... rarilalpu.s I'Curran.
17. Second coastal section at least one anil one-half times as long as the
third .......................... .................... Oxc lrdi.r var.?
Second acotal section not more than o/ne and one-third times as long as
tie thlird....... ..................................... .co ili.r Fitell.








SUIEA''IFI' SURI'{ Y OF P'ORTO RICO


Fig. II Fig. 12


Fig. 13 Fig. 14


Fig. 15
PROFILES OF HEADS
Fi.'. 11.--ltuniobia lut.:i Curran. Fig. 14.
Fi.. 12.-Botanoia lanontlita lara Curran. Fig. 1-.-
iig. 13.--DBatanbiai dirersipes C(urrani. Fig. 10.


Fig. 16


-BtItanl, i pitlliatan Curran.
lnotanoLia sifatri.r Curran
-Biotllnoia imol,, Curran.

























Fig. 17 Fig. 18


Fig. 19 Fig.20
PROFILES OF HEADS
Fig. 17.--lotanolbia mars Curran. Fig. 19.- Rotanobia mautnipalpoidea Culrrln
Fig. S1.-Botantobia tripulirfata Curran. Fig. 20.-Botamnbia ruripalpus Curran.
Botanobia limitata Becker
1912. Oc.inllfti limitala Becker, Annales Mus. N;t. IIung., x. 1). 211.
Twenty specimens :-Porto Rico: Arecibo, March 1-4, 1914; Adjuntaz.
June 8-13, 1915; Caguas, May 28-29, 1915; Caycy, May 30-31, 1913;
Manati, March 5, 1914: Naguabo, March 7-9, 1914; San Juan, July
1-,5 1915. M-ona Island, February 21-26, 1914. Charlotte Amalie, St.
Thomas Island, June 3, 1911.
The species was originally described from Haiti.


CLRR.AN, INS'ECTS' OF IPORTO h'ICO







5I ,ti-.\ *7i'TA UI?{I'l'Y OF PORTO /H'r)

Botanobia lutzi Curran
Fig. 11
192(;. liBot uoliibi eInt:'i Curran. American Mus. Novitates, No. 220, p1. (.

'l'Two males and one female. Arecilo, March 1-4, 1914. June 2 4-2i,
1913, and Adljuntas, June 8-13. 1915.

Botanobia anonyma Williston
1890. Ox/'ihis aniioiiia Williston. Trans. Ent. Soc. London. p. 423.

Several specimens are doubtfully referred to this species. They agree
with the description except that the basal two segments of the middle
and posterior tarsi are reddish. In structure they are quite like the form
described as a variety of anoinima (see following). Coquillett records the
species from various localities in Porto Rico.
The specimens before me are from the following localities: Areciho,
June 24-21;, 1)15: Cayey. 1any :0-31, 1!115: Manati, Mlarch 5. 1914:
Xaguabo, March T-9, 1914.




Fig. 21. -I obinobia anonuy
pri's Curran. Wing.




Botanobia anonymain pura Curran
Figs. 12 and 21
1926. Botanobia a(nonymal p ura Curran. American Mus. Novitates, No. 220,
p. 7.

The type male is from San Juan, February 11-14, 1914. Occurs also
in Dominica.

Botanobia diversipes Curran
Fig. 1.

1926. BIoltnobia diversipes Curran, American 3lus. Novitates, No. 220, p. 7.

Originally described on the basis of three specimens from Arecibo,
June 24-26, 1915.







CURIRAN, INSECTS OF PORTO RICO


Botanobia palliata Curran

Figs. 14 and 22

1921;. Botanr obia palliala Curran, American Mus. Novitates, No. 220, p. S.

Described on the basis of eight specimens from Adjuntas, June 8-13,
1915.





Fig. 2"2.- otanobia pal-
lihta Curran. Wing.





Botanobia confusa Malloch

1T12. Botanlobia confusa Malloch, Ins. Ins. Mens., i, p. 61.

Allied to dorsalis Luew: rather variable in the color of the thorax.
The following description will supplement that of Malloch:-

Length, 1.5 to 1.75 mim.
\ertieal triangle somewhat wider than long, extending to a little beyond
the middle of the front, shining brownish red, the ocellar triangle darker.
Front, face, cheeks and palpi yellowish, the front opaque and with a more
reddish east. Antennae shining red, the third segment wholly opaque black;
arista black, long pubescent. Occiput brownish, black in the middle.
MIosonotum shining reddish brown, the metanotum shining black, the thorax
and scutellum elsewhere (including the humeri, notopleura and posterior
ailli) shining rusty reddish although there is an obscure spot on either side
,f the scutellum and a yellow spot on the sternopleura above. The hair is
black, fairly long and abundant, the dorsocentral rows of punctures conspicuous
in some views; only one posterior notopleural bristle; scutellum bare except
for the strong apicals and weak marginal bristles.
Legs reddish, the tarsi becoming brown apically.
Wings grayish hyaline: second costal section about one-fifth longer than
the third; third and fourth veins somewhat divergent apically: posterior
crossvein slightly oblique, situated about twice its length from the anterior
crossvein. Squaman and halteres yellow.
Abdomen shining brown, rather reddish basally; venter pale on basal half.

A female from Cavycy. 3lay 30-31, 1915. and another from Mayagiiez,
February 13-16, 1914.







SCIENTIFIC SUiRVEY OF P'ORTO 7ICO


Botanobia sicatrix Cirrlan
Figs. 15 and 23
1926. Botanobia sicatri.r Curran, American Mus. Novitates, No. 220, p. S.

Original description based on a series of seventeen specimens from
Mona Island, February 21-26, 1914.

Botanobia mona Curran
Figs. 16 and 24
1926. 1olantaia inai C'urran, Amnerican AMus. Novitates, No. 220, p. 9.

Described from two dozen specimens, Mona Island, February 21-26,
1914.
Botanobia mars Curran
Figs. 17 and 25
1926. Rotanobia niars Curran, American Mus. Novitates, No. 220, p. 10.

Described from three males and two females, Naguabo, March 8-9,
1911, and two females, Aona Island, February 21-2G, 1911.

Botanobia tripundtata Curran
Figs. 1S and 26
1926. BotHnobia Iripunctata Curran, American Mus. Novitates, No. 220, p. 10.

Originally described on the basis of three specimens from Mona Island,
February 21-26, 1914.

Botanobia plesia Curran
192)"i. Ijottabia ph'sia Curran, American IMus. Novitates. No. 220, p. 11.

The type is from Arecibo, March 1-4, 1914.

Botanobia obscure Coquillett
1!)00. Oxsinis obscure Coquillett, Proc. U. S. N. M., xxii, p. 266.

Six specimens: Mayagiiez, June 21-23, 1915; MIanati, March 5, 1914;
Naguabo. March 7-9, 1914, and San Juan, February 11-14, 1914.
This species is most closely related to nitidissima AMeigen. Becker
placed it as a variety of coxendix Fitch in his monograph but in his
Neotropical key it runs to couplet 27, where it does not agree with any
of the species. The palpi are black: the wholly yellow anterior four
tibia, distinguish it from the other species in couplet 27.








CUIRR'A., INS7E(CTS" OF PORTO RICO


Botanobia magnipalloides Curran

Figs. 19 and 27

l!l'2. Botanobia magnipalpoides Curran, American Mus. Novitates, No. 220.
p. 11.

The type series consist- of two specimens from Arecibo, March 1-4,
1914. and two from San Juan, February 11-14, 1914.


Fig. 23


Fig. 24


Fig. 25


Fig. 26


Fig. 27 Fig. 28


Fig. 23-- Hotanobia sirl frix C'urran.
Fig. 24.--Iotunobija 6ion1a Cu'irrl.'i.
Fig. 25.-Botanolbia mars ('urran.


WINGS
FiL. 2(;.- BHotbobia tripuncetata Curran.
Fig. 27.--BOtfanobia mattnipfitlpoide.s Curran.
Fir. 2,s.- Botfnobia rtaripalpu4, Curran.







N1'I/"I'TIFIC SURVEY OF PORTO RICO


Botanobia varipalpus Curran
Figs. 20 and 2S
1526. Botfnobia raripalpus Curran, American Mus. Novitates. No. 220 . 12.

Originally described on the basis of four specimens from Mona Island,
February 21-26, 1914, and one from San Juan, February 11-12. 1911.

Botanobia coxendix Fitch
Eight specimens (Aibonito, July 14-17, 1911: Corozal. July 2. 1913:
Arecibo, June 24-2(, 1915: Adjuntas, June 8-13, 1915; Manati, June
27-29, 1915; Xaguabo, March 7-9, 1914; Charlotte Amalie, St. Thomas
Island, June 3, 1911) agree with the general conception of co.rendi.
Fitch, but all of them have the second costal section at least one and one-
half times as long as the third, while in two of the specimens it is twice
as long, and in all the cheeks are not more than one-fifth the eye-height.
Whether or not these apparent differences are of specific value cannot be
absolutely determined from the scanty and none too well preserved mate-
rial. It is quite certain that the typical co.rendix is not represented in
the collection but since it has been reported from Porto Rico, I place the
specinens here, pending fresh material for study. It seems likely that
there are two species represented, or at least a quite variable one which is
distinct from co.rendi.r.
EPHYDRID.E

ID)ENTIFIED BY IE. T. C'I E:SOsN. J:., EXCEPT IN THE CASES SPECIFIED

KEY TO (;ENERA BY C. II. CUtRRAN.
1. Anterior feluora not, or but little, dilated .......................... 2
Anterior femora very greatly dilated, their tibie ending in a long, spur:
second anteinnal segment without an apical spine above
Ochlherar Latreille.
2. Middle tibiae without bristles on the outer surface. ................. 4
Middle tibihe with two or more bristles on the outer surface.......... 3
3. Costa ending at third vein .............. ........... Notiphila Fallen.
Costa extending to fourth vein........................ Par' litia Loew.
4. At most the prescutellnr pair of dorsocentral bristles present........ 7
Two or more pairs of dorsocentrals present ........................ 5
5. Eyes bare ..................................................... ;
Eyes pilose ....................................... 11ldrellia Desvoidy.
6. Face opaque, with nose-like tubercle; wings spotted..... Ililhca Haliday.
Face shining, evenly convex; wings hyaline ........ Tlyop.oilopiu Cresson.
7. Face evenly convex or more or less tuberculate ..................... .
Face large, prominent below, not tuberculate ........ - ipacii Desvoidy.
S. Third nutennal segment short or the second segnlnt with an apical
spine ........................................................








('1 RIA.V. INSECTS OF P'ORTO I;

Third antennal segment elongate, decumlilent, the second md segment
without apical spine. . . . . . . . . . ..... C 'op.iop ( Cressol.
9. Facial bristles strong; third antennal segment lenticulaori'r elonatte.. 10
Facial bristles hair-like; third antetnal segment short
Och1lt'roidIr Willistin.
10. Third ante linna segllent ,elon.igate ................................... 11
Third anitennal segment lenticultar: iit-iiMiotal hair's lnot disposed ill
row ................ .... ..... .............. lO iscoccriii a I;I<'([irrl.
11. Fat iiiilnd front ci.li'vex iln )i file. unt inll piraticilly tlhe same ]ilane, the
face retreating below ................ ..... .... ... ............ 12
Face and front oblique. in tle e s ine plane: f'ce not rl reitlItihng
below . . . . . . . . . . . . . . . . . . . ... 'l t ess l.
12. Aldomen oval; basal pair of si-ntellar bristles stronl............... . 1:
Aidonlenl broad. nearly eirrular in hotline: basal pair of sinlellar
bristles weak: seitelluim with very few hairs ...... lisiouli'.t Meigen.
13. Fle seullpturedi and miore Ior less trallsverselyv wrinkled
Lelptp.siliopii ('ressit.
Face noit sculptured lnor tranlsversely wrinkled. ........... l's.iPliq F;llen.

Notiphila Fallen
Notiphila, fureata I(Coquillett
1002. IDichletl furwc tI Coquillett. .Joiirn. N. Y. Entom. Coe.. x. p. 1s2.
1917. Noliphila fiurcalt ('oquillett, Tral ls. N. Y. Inll. Soce.. xliii, p. 5)1.

Four specimnens frmui San .Juaiin, Felbruary 11-14. 1914, and July 1-3,
19135, and one from Ensenaila, .June 14-19, 19153.

Notiphila virgata Coquillett
1900. Notiphilh rirynta Coquillett, Prne. V. S. N. M1.. xxii. p. 25!).

There are sixteen specimens, all from I'trto liico: C'orozal, July 2,
191.3: San Juan, Fehruary 11-14. 1914: Na-nualbo. March '-9, 1911;
Adjuntas, June 8-13, 1915: and T'orto ioros Lake, Manati, February
20, 1925. (The specimens from the last-nientioned locality, identified
by C. H. Curran, were taken subsequent to the time when A1r. Cresson
determined the other specimens.)

Paralimna Low
The following key by C. IT. Curran separates the species in the col-
lection:
1. l'leura and venter in large part cinereous.......................... -
Pleura and venter of the same color as thie dorsumi ..... o.iseurI Willistoin.
2. Front of female broader than long; wings yellowish. thle crossveins
lightly clouded; face cinereous to yellowish Iollinise iliatal Cresson.
Front of female not broader than long; wings hyaline: face plum-
beous .......................... ............... ,lHmbicm'p ( 'l'essonll.







SCIENTIFIC' SURiEY OFP P'OTO r RICO


Paralilnlla ciliata Cr''esson
1916. I'tralinmaii cili(lz Cresson, Trans. Amer. Ent. Soc.. xlii, p. 111.
The following localities in Porto Rico are represented: San Juan,
February 11-14, 1914: (oanmo Springs. December 27, 1914; Aibonito,
July 14-17, 1914. (There is also a large series from St. Thomas Island,
February-March, 1925, which was taken subsequent to the time when
MAr. reasonn determined the specimens from 'orto Rico.)

Paralinuma chsrura Williston
1896. Puralinitta obscuri- Williston, Trans. Ent. Soc. L.ndlon, 1). 3.!)

One specimen, St. Croix Island, March 4, 1935. (Identified b ('. I[.
Curran.)
Paralimna Ihlunicelps Cresson
1916. Paralitoiot puiibiccps Cresson. Trans. Amer. Entt. Sue., xlii. p. 110.

Eight specimens from Adjuntas, June 8-13, 1915., and one from Coamo
Springs, Decemlier 27, 1914.

Hydrellia Desvoidy.
Hydrellia calverti (.rosstiu
191S. HUdrtllitr cli-crti Cresson, Trains. Amer. Ent. Soc., xliv. p. 48.

There are specimens from the following places: Adjuntas. June 8-13,
1915; Arecibo, March 1-4, 1914; Aibonito, June 1-3, 1915; Naguabo,
March >-9, 1914.
Ilythea Haliday
Ilythea fenestralis ('ressi
1918. ly/tli c'i frteirs.irli.s Cresson, Trans. Amer. Ent. Soc., xliv, p. 51.

There is only one specimen, taken at Aibonito, June 1-3, 1915.

Psilopa Fallen
Psilopa skinneri Cresson
11922. 'Pilopa .skiincri Cresson, Entom. News, xxxiii. p. 1:l.

A dozen specimens are di tribute among the following localities:
Cayey, May 30-31, 1915: San Juan, February 11-14, 1914; Jaynya,
January (, 1915: Xagnabo, March >-9, 11114: Mayagiiez, February 15-16,
1914, and June 21-23, 1915.

Psilopa unica i'resson
19)2(. Psilopta iica Cresson, Trans. Am. Ent. Soc.. lii, p. 250.

There are two specimens: one from Adjuntas, June 8-13, 1915; the
other from Mayagiiez, February 15-16, 1914.








C('-RAIL, IXLECTS OF P'ORTO RICO


Ceropsilolpa 'ressoil

The following' key by C. H. ('lrran separates the three species in the
collection :
1. Legs, inclmling the c'xae, yellowish ................... ............ 2
Antlerio feimira black ............ ..... .......... . adijunct Cresson.
2. FtWe appealing sllb-opaljque belOw: rlenlgt over 2.5 inn.
(iJquillell i Cresson.
Face wholly shining; length under :2 milu..... . . ... mclliprs ('oInillett.

Ceropsilolii adjunlta C'resson
1925. Ccrops'ilopa adjunct Cr'sso.n. Ent. News, xxxvi p. 16p. 5.

Both the hlilo)type and the paritypes if this species are represented in
the collection. The type series was olitained at these localities:-Adjun-
tas (holotxype), J.une 8-1:1, 1915: Aroc'il. March 1-1. 1914; Alanati,
March 5, 1914: and Nagualio. MIarch 7-9. 1914.

C'elrisilopla cccruilet(i ('ressoill
1922. ('Cropsil(pa coquilclti Cressio. Ent. News. xxxiii, p. 1:;1.

liepresented by a single specimen from Mona Island. February x2l--26.
1914.
(eropsilopa iellipes i ('qnillett)
1900!. PJ'.piia il iillipcs Coquillett, Proc. 1'. S. N. M., xxii. p. 260.

There is a speciniei from o- 11 oif the following places: Adjnntas,
June 8-13, 191,;: Arecibo. March 1-1, 1914: Xaguabo, March 7-9, 1914.

TypopsilfC[ i C( 'rsson
'Typop iloipa flalvilnrsis r('oss on
1916. Tpuel.psiliopa finlrifursis. ('ressoin, Ent. News, xxvii. p. 147.

'The followlin localities are repre-ented : Mayvagiiez. .lune 1-23. 191.
and Arecilho, June 24-2(;, 1915.

Leptopsilopa ('resson
Lepitopsilopa willistoni C'resson
15916. sI'.iilopa nlgriin iian Willistoin, Trans. Ent. S,o. Li)n iihn, 1. 2,193.
191S. I'silopa / rilli.itori Cressiin. Trils. Ain. Ent. Sio., xliv, p. 53.

A hlrge series fr(;i the following places: C'avey, May 30-31, 1915;
Adjintas, :iune 8-13, 1915: Alayagiiez, February 15-16, 1914; Coamo
Springs, Jul- 17-19, 1914: San Juan, February 11-11, 1914: Arecibo,
TJune 24-2(;, 1915: Naguao. March ;-9. 1914: alanati. March 5. 1914;
Deseeheo Island, February 18-20, 1914.







NCIEA 2'I''IC ,SURVEY OF P'ORTO RiCO


Plagiops Cress n
Plagiops aciculata I Loew)
lS02. I'tsilopa! IIiieulta Loew. Mon. Dipt. N. Amer.. i. 11. 142.
1S i,. Ephyyrobiivt metafllica Sehilner. Nov. Jtesa. Dipt.. p. 242.
1925. 1'lagiop.x uIric uhtlat Ires.n, Trans. Amer. Ent. Soc., li, p. 244.

There are specimens from Manati. March .5 1914: Mayagiiez, Febru-
ary 15-16, 1914: C'aguas. May 2n-29, 1915 : Caopy', May 30-31, 19175;
Coanio Sprinilp, July 1;-19, 1914: San Juan, February 11-14, 1914:
Nagunabo, larch ;-9, 1914: Mana Island. February 21-26. 1914.

Plagiops nitidifrons CressIon
191l. Plmqjiops.i aitidifJron.s CresoInn. Trians. Amer. Ent. Soc.. xliv, 11. 54.

One specimen. St. C'rix TIlandl, FIrluriary 2. 1925. (Identified by
C'. H. C'urran.)
Discomyza 3leigen
Disconlyza maculipeunis (Wiedemanni)
1524. Vo/tiphiili mIcuipcemd.i Wiedemann, Anal. Ent., p. 57.
1SIl2. Discomnta ialioptrI/i L,,ew. 3on. N. Amer. IDipt., i. p. 140.

Nine specimens fromii ('hristianited. St. (roix Island, .June 4, 1911.
(Identified by C'. II. ('urran.)

Discomyza ldubia Williston
1890. Discomyn.: dabia Willistn, Trans. Ent. Soc. Lolndonl. p. :192.

There are re]presentatives frim the following localities: Manati. June
?-2!., 1915: 'hrirtian.ted, St. Croix Island, June 4, 1911; Charlotte
Amnalie, St. Thomas Island. June 3. 1911. (Identified by (. Curran.)

Di)sooerin I:U.l q Maci rt
'Ihe following key by ('. 11. (urran separates the species represented
in the collection:
1. Apical abdominal segment t u t white ...............................
Apical abdominall segment white. ........... .CUcIptIro illriSiI (C')u'llcett.
2. Second coastal section scarcely longer than the third .... ob.nurelltrli Fallen.
Second coastal section one-half longer than ite third .... obscurl, Willis.,o

Discocerina lelcoprocta subspecies incisa Coquillett
11)02. Disr occrimn icisa Coquillett. Jonrn. N. Y. Ent. Soc.. x. p. 152.
1118. iliscocriila Il euoprocla subspecies i/cisu Cresson, Trans. .Anmer. :t.
Soc., xliv. 1. 5S.

The four specimens of this species are respectively from San Juan,
February 11-14. 1!14: C'oamo Spring's. July 17-19, 1914; Ianati, June
21-29, 1915:; Mava.iiez. February 15-1i, 1914.








CURRAN, INSECTS OF PORTO RICO


Discocerina obscura Williston
1s'0i. Dis-rnociina obscura Williston. Trains. Ent. Soc. London, p. 307.
Nine -pecimens of this species are distributed among the following lo-
oalitie. : agunabo, March 7-9, 1911: Cayey, May 30-31, 1915: Mayagiiez,
February 15-10, 1911.
1)iscoeerina obscurella (Fallen)
1 1::. Ynoiphila obscurella Fallen, Handl. K. Svenska Vel.-Akad., p. 2-51.
1'1;2. Di.vmcrinet parva Loew, Mon. Dipt. N. Amer. i, p. 144.
1E11". Disco-cerimii obscurella subspecies purmt Cresson, 'l'riis. Amer. LE:.
Soc.. xliv, p. 5S.
11925. Diw.soerinu obscurella Cressoii,n Trans. Amer. Ent. Soc.. li. p. 254.

Three specimens. two from Mayagiiez, February 15-16, 1914. and the
third from Mona Island, Feibruary 21-2;, 1914, represent this species
in the collection.
Ocltheroidea Williston
Ochlithleroidea centralis Cresson
1!9I'. Orchitirouidea ce1ntralis Cresson. Trans. Amer. Ent. Soc.. xliv. p. 60.
There are specimens from Mayagiiez, February 13-1(. 1911. and San
.luan. February 11-14, 1914.
Ochtheroidea laevis Cresson
lll'. OcitIiheroidea laevis Cresson, Trans. Amer. Eant. Soc., xliv. p. (11.

Seventeen specimens of this species were collected at these localities:
Adjnntas, aJne 8-13, 1915; .\recibo, March 1-4, 1914: Barros, June 4,
191); Mayagiiez. February 15-16. 1914; Naguabo, March R-9: Rio
(Grande, J.uly 3, 1915.
Naplea Desvoidy
Napaea huntilis WVilliston

ls,7. Paryidrai hItmil/is W illiston, Knnsas Univ. Quart., vi, p. 7.
Two specimens from St. Thomas Island, March 11, 19225. (Identified
by C. 11. Curran.)
Ochthera Lmitreille

One damaged specimen belonging to this genus from St. Thomas
Island. March 11, 1925, remains undetermined.

DROSOI'HlIL IDE

This family is represented by four species belonging to two genera.
TABLE OF GENERA
Arista with a single very long sub-basal ray above.. Clado/.let 'i Coquillett.
Arista with several rays above and one or more below.... Droxophil i Fallen.







(;4 SCI'ATIFIC SURVEY OF I'OR'TO RICO

Drosophila Fallen
TABLE OF SPECIES
1. Front largely or wholly black or brown ............................. 2
Front rusty reddish or yellowish...................... similis W illiston.
2. Mesonotum unicolorous black, with thin brown pollen.... lutzi Sturtevant.
Mesonotum gray and brown.......................... 'rpleta Wollaston.

Drosophila similis Williston
18G. I)rosophilo ximilis Williston, Trans. Ent. Soc. Lndon, p. 415.

One specimen, St. Croix Island, February 27, 1925.

Drosophila lutzi Sturtevant
1916. Drosophil/a lut=i Sturtevant. Ann. Ent. Soc. Amer., ix. p. 310.

More than thirty speciienIs,. Luquillo lNtional Firest, February 1,
1925.
Sturtevant states that there are six rows of hairs between the dorso-
centrals in front, but there are actually eight rows, the outer ones
irregular.
Drosophila repleta Wollaston
1S.,i. )rosophila rerpl/l/ Wi'llhastmn. Ann. MIag. Nnt. Hist., xli, p. 117.

Two spi-einens Saniturce J.anuary t, 1914.

Cladoclaeta (oquillett
Cladorhaeta nebulosa r'oquillett
110(0. ('hadochrfcla cibulosa ('Coqillett. Prne. U. S. N. 3A., xxii, p. 261.

One specimen, St. Croix Island, March 7. 1925.

AGROMYZID.E

This family is represented by only a single genus.

Agroamyza Fallen

One of the seven species of which there are representatives in the
collection is undescribed.
KEY TO SPECIES
1. iHaltares dark, rarely only with a large blackish spot on outer side. 2
Halteres yellowish (the stein nimay le dark basally-) ................ 4
2. Halteres black or brrown ... ................. ............... .
IIalteres yellow, the knob brown exteriorly............ miaclios Malloch.
3. Silunmze and their firing pae e .vellow.................... .. virens Loew.








CU'I.11- IY, INSGTETS OF PORTO lICO


Sqnamue gray, with brown border ;nl fringe.... lo 1 Uiuda, new species.
4. Scutellum yellow ................. ................ m la p!(ii r O l -oew.
Seutellum wholly blackish ......................................... 5
5. At most the incisure between the mesototuin and the pleura pal e..... 6
Sides of the mesonotum broadly yellow, at least in front of the wings.
pla t!iptcria Thomson.
G. Tarsi wholly black or brown........................ riridula Coquillett.
Tirsi with at least the first segment reddish yellow.... pirricornis Loew.

Agromyza mnaculosa Malloch

191a. Agroimza mafclosa rMalloch, Ann. Ent. Soc. Amer., vi, p. 012.

Nine specimens from the following localities in Porto Rico: Areciho,
March 1-4, 1914; Cayey, May 30-31. 1913: Barros. June 1, 1915: A.1-
juntas, ,mue 8-13, 1915; Ensenada. June 14-19, 1915.

Agromyn.za virens Loew

186si. Alyroiyrza circus Loew, Cent. viii. p. 84.

Thirty examples from Porto IUico: Nagnuabo. March 7-9, 1914: San
.luan, February 15-16, 1914, July 9-12, 1914, July 1-5, 191,5: Arecibo,
June 24-26, 1915; July 30-August 1, 1914: Aibonito. June 1-3, 1915:
NMayagiiez, February 15-1;, 1914: C(iamn Springs, July 17-19, 1915;
Barros, June 4, 1915; (Caguas, May 28-29, 1915: Adjuntas. June 8-13,
1915: C'ayey, May 30-31, 1915: Manati. June 2:-29. 1915. Two from
St. Croix Island. March 4. 1925. One from St. Thomas TIland. Marnch
12, 1925.
Agromyza longicauda, new series
Struc-turally very similar to ririi is I.oew. The clor is lnlaek: the tlihorax
lightly brownilsh 11olliinoe; the abomlllen soniewlhat greenish Ibilack: llpla-ialarl
bristles very long; ovipositor three times as long as its basal width: squnmam
gray, with brown hiorder and fringe: two ailrs ofl dlorsocelntrals, prescutel-
lars.

Type. male, allotype, female, St. Croix Island, March 2, 1925. A
second male from St. Thomas Island. February 23. 1925. lacks its head.

Agromyza melampyga, Loew
10iN Ayrominyza moi mp inga 1.oew, (Cent. viii, p. 1.

Two specimens: Naguabo, Mlarch 7-9, 1911, and Arecibo. March 1-4,
1914.
Agromyza tilatyptera Thomson
1S53. Agromyza platyptera Thomson, Eugenics Resa.. 0p. O.
1872. -\iroiyza! artemiisiae Kaltenbach, Pflanzenf., p. 35i.







S(rIENTIFIC SNTRITEY OF PORTO H(I O


Seven specimens: Jayuya, January 6, 1915; Naguabo, March 7-9,
1914; Arecibo. March 1-4, 1914; Corozal, July 2, 1915; Aibonito, July
14-17, 1914.
Agromyza viridula Coquillett
1902. Agromyza viridula Coquillett, Journ. N. Y. Ent. Soc.. x, p. 190.

A dozen specimens from Porto Rico and the Virgin Islands: Maya-
giiez, February 15-16, 1914: lManati. June 27-29, 1915; Arecibo, March
1-4, 1914; San Juan, June 27-29, 191-5; Naguabo, March 7-9, 1914;
Christiansted, St. Croix Island. June 4, 1911; Charlotte Amalie, St.
Thomas Island, June 2, 1911.

Agromyza parvicornis Loew
1S69. Agromlyza parvicornis Loew, Cent. viii, p. 92.

A single specimen from Adjuntas, June 8-13, 1915.

OCHTHIPHILIDE

This family is represented by only a single species.

Acrometopia Schiner
Aerometopia inaculata Coquillett
1902. Acroanetopia inaculata Coquillett, Journ. New York Ent. Soc., x, p. 185.

Seven specimens from Mona Island, February 21-26, 1914.

MILICHIIO)E

The genera belonging to this family that are represented in the col-
lection are indicated in the following key.

KEY TO GENERA
1. Eyes with an angular emargination near the middle behind.......... 2
Eyes not indented behind.......................................... 3
2. Four dorsocentrals; hair of thorax bristly.......... Eccoptonima Becker.
One or two dorsocentrals; hair of thorax short, appressed.
Milichiella Giglio-Tos.
3. Wing with an excision as deep as the width of the costal cell immedi-
ately before the tip of the first vein.............. Pholcomyia B ilimek.
Wing not deeply incised although the costa is fractured.
Desmomnetopa Loew.
Eceoptonmna Becker
Eccoptonmma montanum Becker
1907. Ercoptommna nlontanuin Becker. Annales Mus. Nat. Hung.., p. 541.

One male, Mayagiiez, July 24-29, 1914.








'URR'? IA,. INNE('T' OF I'PORTO 1 ('O


Originally described from Peru. As the genus i. new to North Amer-
ica. I present a description of the species, which includes also the generic
characteristics.
Hl;ok;: abdomen arg enteous except the base and opex. Length, 2.5 mm.
Male. Head opaque, face with a little grayish-brown pollen and seven or
eigllt pairs of bristles: median frontal bristles fairly long: postocellars diver-
gent: excavation of the eyes moderately deep. Antenme black; arista very
long. slender: palpi opaque black.
Mesonotum and scutellum brownish pollinose from anterior view; three
pairs of postsutural acrosticals; four pairs of dorsocentrals. one pair situated
in front of the suture, the hair rather long and coarse: three sternopleurals.
Legs black: tips of the tibil and the immediate bases of the tarsal segments,
reddish.
Wings cinereous hyaline: fourth vein curved forwards apically. Squamte
with at least the border and fringe brown. Halteres blackish.
First abdominal segment, anterior angles of the second and the apical seg-
ment. black, the intermediate segments argenteous; venter wholly black.

Milichiella Giglio-Tos
191:. P'ratelidizu Malloch, Proc. U. S. N. M.. xlvi, p. 13i.

There are three species belonging to this genus in the collection. The
males of the North American species are separated in the following table.

KEY TO MALES
1. ( nly the second abdominal segment with a silvery white spot on
either side........................................... lcidula Becker.
Abdomen wholly black or more extensively silvery white ............. 2
2. Abdomen largely silvery white .................................... .
Abdomen wholly black, the disc dull, the margin .shining. lacteipennis Loew.
3. Mesonotum shining black or rather thinly brownish pollino(se ......... 4
Mesonatum cinereous, usually with brownish vittet.... eincrca Coquillett.
4. JMesonotnm with scarcely a trace of pollen: third and fourth veins
strongly converging .................................. arcuata Loew.
Mesonotum more evidently brownish pollinose; third and fourth veins
but little converging.................. Eccoptomma montaionn Becker.

Milichiella larteipennis Loew
1 ,65. Lobioptcra lactcipennis Loew, Cent. vi. p. 97.
10(H). DI)csomctopa halteralis Coquillett. Proc. U. S. N. M.. xxii, p. 267.

Eleven specimens of both sexes: San Juan, July 9-12, 1914; Adjuntas,
.June 8-13. 19.i: Manati, March 5, 1914: Mayagiiez. February 15-16,
1914; Guayanilla, July 22, 1914; one from MIona Island, February 2-12,
1914; three from Desecheo Island, February 18-20, 1914.
Some of the specimens agree perfectly with Colquillett's description of
halteralis. The costal incision is not always greatly pronounced.







6(;S CIES TIFIC SURVEY OF 1'O1RTO RICO

Milichiella eilerea ('oIuillett
tS'99. Ophthalmomyia cinerca Coquillett, IPrc. U. S. N. 31., xxii. p. 268.

2Not represented in the collection, but originally described from Porto
Rico.
Milirlciella arcuata Loew
1876. Lobioptera arcuata Loew, Zeitschr. Ges. Nnturw., p. 3:3).

A single male, Deseeheo Island, February 18-20, 1914.

Desmometopa Loew

The two species are separated in the table that follows.

KEY TO SPECIES
I'llpi deep black; tarsi largely yellow....................... tursali ILoew.
Plall i palh yellow with brown apices; tarsi black ...... Al-niirunt Zetterstedt.

Desmometopa tarsalis I.oew
1835. JD)csrxnmctopa torsalis Loew, Cenl. vi, p. 96.

One specimen, Desecheo Island, February 18-20, 1914.

Desmometopa MI-nigrnin Zetterstelt
1848. Agromiyzau M-nigrium Zetterstedt. D ipt. Scantl.. vii, '. 2743.

One specimen, Jayuya. February 6, 1915.

Pholeomyia Bilimlek
Plholeomyia indecora Loew
lt;9. Lobioptera indccoru Loew, Cent. viii, p. 94.

A female from Mayagiiez, February 15-16. 1914, and another from
Mona Island, February 21-26, 1911.

BOnnlblID.E

All the representatives of this family belong to the genus Lepiocera
Olivier and two of them are apparently common in the region.

Leptocera Olivier
KEY TO SPECIES
1. Third vein not angulated apically, curving into the costa............ 2
Third vein almost rectangular at the apex. without appendage, sur-
rounded by a blackish spot: thorax opaque blackish with whitish
or cinereous spots.............................. angulata Thomson.








CI'URAX, INSECTS OF PORTO RICO


2. No distinct presutural acrosticals ................................ 3
A pair of well developed presutural aerosticals ....... i.umila Williston.
3. Pise of the scntellum with numerous apprcssed short, bristly hairs;
thorax and scutellum dull reddish ..................... illoto W illiston.
Soutellum with only marginal hairs; blackish .......... diseiclls Malloch.

Leptocera angulata Thomson

1S6U. Borborus inguilata Thomson. Eugenies Iesa, v. p. 602.
1878. I.orborus rernalicus Osten Sacken, Cat. Dipt., p. 203.

There are numerous specimens of this widespread tropical species:
Adjuntas, June 8-13, 1915; Aibonito, June 1-3, 1915; Arecibo. March
1-4, 1914, June 24-26, 1915: Barros, June 4. 1915: Cayey, May 30-31.
1915-: Ensenada, June 14-19, 1915: Luinuillo National Forest, March 17,
1925; Mayagiiez. February 15-16. 1914; Naguabo, March 7-9. 1914: San
Juan, February 11-11, 1914.

Leptocera puniila Williston

1896. Limosiln pilnilhi Williston. Trans. Ent. Soc. London, p. 432.

Two specimens from Aibonito, July 14-17, 1914. and Naguabo, March
1-9, 1914.
Leptocera illota Williston

1"s!). BHrlorirus Mloti Williston. Trans. Ent. Soc. Londonl) p. 4-34.

A single specimen from Charlotte Amalie. St. Thomas Island, June 3.
1911.
Leplocera discalis ialloch

1912. Limno.mina disc(oli.x Malloch. Smiths. Misc. Coll., lxix. p. S.

There arerrerepresentatives from the following localities: Aibonito,..1 une
1-3, 1915: Arecibo, March 1-1. 1911: Cayey, May 30-31, 1915; Coamo
Springs, July 17-19. 1914, June 5-7, 1915; Naguabo. March 7-9, 1914:
Christiansted. St. Croix Island, June 4, 1911: St. Croix Island, March
2, 1925.
TIRYPANEIDLE

While there are many representatives of this family in the collection,
most of them belong to two species. The five genera in the collection
may be separated as follows:
KEY TO GENERA
1. P'roboseis short, not geniculate .................................... 2
I'roloscis long. geni high ............... ...................... Ensinm Desvoidy.







S('JIT\V[IFIC N''UIEY OF PORTO R/lO0


2. Scuntullt mi with four bristles ....................................... 3
S(eutellh1n with two bristles: nilicnl fourth of wing wholly brown.
Ac/rei Desvoidy.
3. 1 ings with strong I irow \ nisl nimarkings on the i al half .............. 4
\\ings hynline ,1r with l obscure 11Imarkings 11I almost the bassal half. the
apical d(irk markings radiating from a median spot. Trypa(nit Schrank.
4. Wing markings radiating apically....................... Eiutresta Loew.
W ing marking s nl ,t irnliatilng ;lpically................... T'ep/ hritn i. i ew.

Ensina Desvoidy

There are two sperics in the collection belonging to this genus.

Ensina picciola Bigot
1857. Aeinia pi irloi :Iigot. ill Sagra's Hist. 1'ol. & Nat. Cuba. p. .S4.

Numerous specimens from the following localities: Adjuntas, Jime
8-13, 1915; Aibonito, July 14-17. 1914; Arccibo. March 1-4, 1914;
Barros, .Juune 4. 1)14: Co('inm Springs. .June .5-, 1915; Alanati, June
27-29. 1915: Quadrillas, June 23, 1915; San Juan, February 11-14,
1914; Mayagiiez, June 21-23, 1915; Christiansted, St. Croix Island.
June 4, 1911 ; also Mangrove Cay. Andros Island, May-June, 1917.
This species is quite variable. In about half the specimens there are
three spots in the marginal cell while in the others there are only two.
but in some specimens there are three such spots in one wing and two in
the other. Another variation is the presence of an additional spot in the
apex of tlie submarginal cell but some specimens show this in only one
wing; there may le either two or three hyaline spots in the marginal cell
in this form. These can be no more than very poorly marked varieties
and are scarcely worth considering. From-the great variation shown in
the large series before me it senms probable that the number of species in
the genus is actually less than the number already described.

Ensina tlholnae, new species
Fig. 30
Length, 3 mm., ovipositor. 1 mim.
Female. Very similar to picciola Bigot but with less extensively brown
wings, partly yellow scutellum and a much longer, narrower, shining black
ovipositor. The legs are reddish yellow, the basal two-thirds of the posterior
femora brownish.

Type, female, St. Thomas Island, February 28, 1925.







LURIiRA, INSECTS OF PORTO RI'O


Aciura Desvoidy
Aciura insect Loew

1S62. Aciura inisccta Loew, Moin. N. Amer. Dipt., i, p. 72. (Fig.)

More than fifty specimens from Porto Rico: Arecibo, March, June,
July: Aibonito, June 1-3, 1915; Adjuntas, June 8-13, 1915: Barros, June
4. 1915; alanati, .June 2-29, 1915: Mayagiiez, February 15-1(, 1914;
San Juan. July 9-12, 1914 and July 1-5, 1915; Quebradillas, June 23,
1915.
Trypanea Schrank

The two species are separable as follows:
Five black rays reach the wing margin from the apex and posterior edge
of the black area ............................... meromra Walker
Six black rays reach the wing margin ................. dacetoptrra Phillips

Trypauea nievarna Walker

1849. Trypct i mevarna Walker, List. Dipt. Brit. Mus., iv, p. 1023.
1862. Urellia solaris Loew, Mon. N. Amer. Dipt., i, p. 81. (Fig.)

One specimen, Adjuntas, June 8-13, 1915.

Trypanea dacetoptera Phillips

1923. 'Trypanea daeeloptera Phillips, Journ. N. YE. Et. So.. xxxi, p. 14S.
(Fig.)

Two specimens from St. Croix Island, March 2, 1935.

Euaresta Loew

One of the three species in the collection is undescribed.

KEY TO SPECIES
1. Marginal cell with three hyaline spots............. ................. 2
Marginal cell with two hyaline spots, the apical spot absent.
plesit, new species.
2. A hyaline spot in the submarginal cell behind the pair of spots in the
marginal cell................. ................ miclnoga.stcr Loew.
No hyaline spot in the submarginal cell behind those in the marginal
cell ........... ........ ..................... obscuricetfr-is Loew.

Euaresta plesia, new species
Fig. 2!
Length, about 3.5 mm.
Female. Head missing. Thorax brown, densely yellowish-gray pollinose, the
hair silvery yellowish, subappressed. sparse; bristles yellowish, with brown
bases. Humeri yellowish.






rI/ETIFIC S''EY OF 'PORTO I 2RO











Fig. 29


Fig. 30


Fig. 31


Fig.32

[Pig. 20.--E Crcusa plesia, new species.
Fig, 3O.-Ensia a thonma' new species.
Fig. 1.--Tephritis flotosa, new species.
Fig. 32.--Chactopsis quadrtifasciatir, new species.







CCURRAI, INXECTS OF PORT RICO


Legs reddish yellow, the hair pale yellowish, the anterior femora with three
or four postero-ventral bristles.
Wings brownish. with whitish hyaline spots as shown in Fig. 29. First vein
setulose above, the third vein bare.
Abdomen shining lbrolwn, the rather sparse, oppressed hair very pale yellow-
ish: ovipositor with sparse, dark hair above.

Type, female. C'oanmo Spring,. Porto Rico. July 1T-19, 1914 (along
bank of stream).
Euaresta inelanlogaster Loew
1S62. Euarcsta imclaigcaster Loew, Mon. N. Amer. Dipt., i, p. 90. (Fig.)

Very many speciniens from numerous localities in Porto Rico and
adjacent islands.
Euaresta obscuriventris Lew
1873. Euaresta obscirmicinris Loew. Mon. N. Amer. Dipt., iii, p. 313. (Fig.)

Fourteen specimens: Adjuntas, June 8-13, 1915; Aibonito, June 1-3.
1915; Barros, June 4, 1915; Mayagiiez, hJne 21-23, 1915; Arecibo. ,Tume
24-26, 1915; Xaguaho, March 7-9, 1914.

Tephritis Loew

The single representative of this genus is aln undeseribed species which
is characterized below.

Tephritis floccosa, new species
Fig. 31

Pale brownish, with Irownish yellow and brown pollen: base of eacli bristle
black. Lelgth. 3 inlm.
Mtle. Head pale reddish yellow. the occiput brownish-stained and gray
pollinose: a blackish spot separating the face and front on either side. Four
pairs of frontals. the upper and lower pairs smaller, whitish and reclinate,
the median pairs yellowish and converging, each bristle arising from a narrow.
high tubercle; vertical bristles strong, the outer verticals well developed, the
occipital cilia extending to below the middle of the eyes, about half of them
white and enlarged; each cheek with a strong, brown median bristle below:
hair of the head mostly sub-squamose and whitish. Antennmi large, the third
segment less than one and one-fourth as long as wide, angnlated at the upper
apex; arista pubescent, brown on the apical three-fourths, swollen on the basal
fourth.
lesonotum densely brownish-yellow pollinose, the hair squamose, whitish,
arranged in four broad, irregular, poorly separated vitt.e, the bristles yellow-
ish with black bases. Pleura yellowish-brown pollinose, with some paler areas,
the hair squamose, Ille; the mesoplenra with three or four, the sternopleura
with one brownish bristle. Scutellum colored as the mesonotlum, with four
yellowish bristles and sparse. squamose whitish hair. -
Legs yellow; femora with sqlamose bristly hairs. ,


i "
4 .. :::







Nt'IlX'TIFit' CI I IS Y 01'V OF O TO RIO('


Wings grayish brown with numerous roundish, hyaline spots (Fig. 31), the
first vein wholly setulose above, the third setulose as far as the anterior cross-
vein.
Abdomen with yellowish-brown pollen, the second to fourth segments each
with a small brown spot on either side towards the apex, the spots well
separated from each other. The hair is whitish and squamose but each seg-
ment bears, on either side, a large, subtriangular spot clothed with short
black hair, the triangles more or less distinctly connected anteriorly, those on
the second and third segments extending the whole length of the segments.

Type, male, St. John Island, March C, 1925.

SEPSI D.E
This family is well represented in the collection, six species belonging
to the family being present. All the representatives belong to the genus
S,'epsis.
Sepsis Fallen
KEY TO SPECIES
1. Alesonotum wholly or almost wholly brownish pollinose and appear-
ing somewhat dull..................................... .......... 2
Mesonotum polished black on at least the anterior half; no apical spot
on w ing. ..................... ... ............................... 5
2. Middle and posterior tibiem wholly without bristles except on the apex. 3
Middle and hind tibie each with one or more conspicuous short bristles
dorsally; genitalia reddish .................. haemorrhoidalis Schiner.
3. Anal vein reaching less than half way to wing-margin; abdomen con-
stricted at base of second segment............................... 4
Anal vein reaching almost two-thirds the distance to the wing-margin ;
:abdolien nu1t constricted oil base of second segment .... (riiiati Schiner.
4. Wing not strongly brownish apically...... fitrr ta Melander and Spiler.
Wing with a large brown cloud between the second and third veins
apically ...................................... simpler, new species.
5. Anal vein extending more than half way to wing margin... pusio Schiner.
Anal vein extending scarcely more than one-third the distance to the
wing-margin ........................ armiillta Melander and Spuler.

Sepsis haeinorrloidalis Schiner
1,8GS. Sepsis .ioemorrlhoidalis Schiner. Novara, p. 261.

Numerous specimens from the following localities: Aibonito. June 1-5,
1915: Adjuntas, June 8-13, 1915; Arecibo, March 1-4, 1914; Naguabo,
March 7-9, 1914; Mayagiiez, Juily 24-29, 1914; Cayey, May 30-31. 1915.

Sepsis armata Schiner
1568. Sepsis armatac Schiner, Novara, p. 262.
1!917. Sepsis h}opicnemia Melander and Spuler, Wash. Agr. Exp. Sta. Bull.
No. 143, p. 17.







CURR.IA. INSECTS OF JPORTO I 'ICO


This species is represented by ten specimenns: Adjuntas, lJunl 8-13,
1915 and June 26, 1915: Mayag'iiez, July 21-29, 1914: Aibonito, July
11-17, 1914.
Sepsis furcata 1Mlander anl Spuler

1917. ,S'psis furcata Melander and Spuler, Wash. Agrie. Exper. Sta. Bull.
No. 143, p. 19.
1926. Pllacos psis armillta Duda, Ann. Naturhist. Mus. Wien, xl, p. 902.

Male, Mayagiiez. February 13-16, 1I1l : female. Arccibo. June 21-26,
1915: male, Charlotte Amalie, St. Thomas, June 3, 1911.
There may be some doubt about this species being furcat Melander
and Spuler since these authors state that the notum is polished black.
whereas in the specimens before me the mesonotum is thinly but con-
splicuously brownish pollinose, with the usual pale lateral stripe in front.
In all other respects the specimens agree with the descriptions.

Sepsis simplex, new species

Agrees well with furcata Ielaniidr and Spuler but there is a very large
brown cloud in the apex of the first posterior cell and the male genital forceps
lack a process towards the apex. Length, about 3 mni.
.ltle. Front, occiput and abdomen deep black: thorax browIlish; front pol-
islhed, occiput grayish pollinose; cheeks and face brownish red, the antenna
grooves brownish, thinly pale pollinose. Antennae reddish, the third antenna
segment mostly and the arista, brown.
Thorax varying from brown to reddish brown, the mestnotiun aind scutellum
almost all thinly brown pollinose; a grayish-white pollinllse band extends back-
wards along the inner end of the humeri and over the notopleura while another
extends from the front eox.e over the rpper border of the sternopleura : three
or four pairs of very inconspicuous acrostical hairs in front, the dorsocentral
alirs almost as small: two pairs of strong dorsocentrals.
Front legs. including the coxme, yellowish; posterior four femora yellowish
on the basal third, the middle tibie yellowish on the sub-apical third to one-
half; tarsi reddish yellow, with the apical two and one-half segments black-
ish : posterior four femora and tibi:e mostly blackish or brown. Anterior
femora thick on the basal three-fifths, thence somewhat excavated beneath,
witb a small tubercle on either side a little beyond the middle, the posterior
tubercle bearing a short, stout, tapering spine, a bristle situated at or slightly
before the middle of under surface. The anterior femora and tibie are shaped
almost as in fircata.
Wings cinereous hyaline, the base broadly deep brown except behind, the
apex with a large brownish cloud. Anterior crossvein situated at tile apical
two-fifths of the dismal cell; anal vein extending from one-fourth to one-third
the distance to the wing-margin. Halteres yellow.
Abdomen polished black, the genitalia reddish; apical segments with distinct
bristles; genital claspers simple.
Fenile. Legs simple; apical dark band on middle tilbie usually less distinct.







S'IEV T]FIpC SURVEY OF PORTO l ('tO


Type, male, allotype, female. Adjuntas, Junee 8-13. 1915: paratypes:
two males, four females, Adjuntas, June 2(;, 9!15; female, Arecibo,
June 24-26, 1915; female, Naguabo, MIarch ;-9, !914 (around horse
manure).
Sepsis pusio Seliner
186S. Sep.sis punio Schiner, Novara. p. 262.
1896. repsis insuliris Williston, Trans. Ent. Soc. London, p. 431.

This common and widely distributed species is represented by numer-
ous specimens from the following localities: Adjuntas, June S to 26,
1915; Aibonito, June 1-3, 1915; Arecibo, March 1-1, 1914; Caguas, May
28-29, 1915 : Coamo Springs. June 5-;, 1915, .July 1-19, 1914; Cayey,
Slay 30-31, 1913: Jayuya, January 6, 1915: M3anati, June 27-29, 1915;
Mayagiiez, February 15-16, 1914 ; Naguabo, March 7-9, 1914; San Juan,
February 11-14, 1914, July 9-12, 1914 and July 1-5, 1915: Mona
Island, February 21-26, 1914; Christiansted, St. Croix. June 4, 1911;
Charlotte Amalie, St. Thomas, June 3, 1911.

Sepsis armillata Mlelander and Spuler
1917. Nepsis armillata Melander and Spuler. Wash. Agric. Exper. Sta. Bull.
No. 143, p. 18.
1926. P'laeos'cpsis fircatla lnda, Ann. Naturhist. Mus. WVein. xl. p. "2.

This species is quite as common as pusio and evidently occurs with it
since the data on the majority of the specimens correspond to those on
the specimens of the preceding species although there are no specimens
from Mona Island or St. Thomas. In every other case specimens of both
species were taken in the same locality at the same time.

OnRTAL,1D.E

The thirteen species belonging to this family are distributed among
five genera, which are separable by the table which follows.
KEY TO GENERA
1. First wing vein wholly bare .......................................
First wing vein with tiny bristles on at least the apie;ll half.......... 2
2. Scutellum with a large, polished black swelling on either side.
Xantithacrona Wulp.
Scutellum without such swellings.................. crostieta Loew.
3. Third antenna segment rlunlded alically: oral margin or elypens
prominent ...................................................... 4
'Third antenna segment angnlated at its dorsal apex; face perpen-
dicular or receding ................................. Chactopsis Loew.
4. Front with strong transverse wrinkles bearing obscure punctures.
Notograanmna Loew.
Front not strongly pullntured or wrinkled................ EuE.rest Loew.








CURRIJX, INSECTS OF PORTO RICO


Xanthacrona van der Wullp

This genus contains lut a single species, which was originally de-
scribed from Mexico.

Xantliacrona bipustulata van der Wulp

1899. Xanthletrona bip uil tlata van (ler Wulp, Biol. Cent. Amer.. Dipt., ii, p.
:92.

One specimen, Coanio Springs, January 17, 1915. I haxe seen the
species from Jamaica.
Acrosticta Loew

In the available tables to the genera belonging to the family this genus
is represented as having the first vein of the wings bare but in all the
examples I have seen this vein is more or less extensively setulose above.
The two species in the collection may be distinguished as follows:

Apical wing-spot sub-triangular. but little concave inwardly. fe'rcolatae Loew.
Apical wing-spot strongly concave inwardly.............. scrobicultita Loew.

Aerosticta fieveolata Loew
1867. Acrosticta fu'i'riolat Loew, Berl. Ent. Zeitschr.. xi. 2l.

There are specimens from the following localities: Adjuntas, June
8-13, 1915; Arecibo, March 1-4, 1914, June 24-26, 1915; Coamo Springs,
June 3-7, 1915, July 11-19, 1914: Manati, June 2;-29. 1915: San Juan,
August 2-3, 1914: St. Thomas Island. February 25, 1925.

Acrostieta scrobiculata Loew
1867. Acrosticta scrobieulaola o.ew, Herl. Ent. Zeitselir., xi, p. 293.

One specimen, Charlotte Amalie, St. Thomas Tsland. June 3, 1911.

Euxesta Loew

This genus is well represented in the collection and there are large
series of most of the species.
KEY TO SPECIES
1. Wings with an isolated apical brown spot and at most a short fascia
at the stigma, tie base also sometimes brown .................... 2
Wings with at least three bands in addition to the dark base........ 3
2. Anterior femora almost wholly reddish ; apical wing-spot small; basal
segmelit of front tarsi mostly reddish .................. spolitao I.oew.
Anterior femora almost wholly black; apical wing-spot large.
costulis Fabricius.
3. Frontal hlnule opaque black........................................ 4







s'CIESTIFIC SURVEY OF PORTO RICO


Frontal lunllle not opaque black .................................. 5
4. Hyaline fascia nearest the wing-tip extending into the marginal cell;
lower part of the front opaque .......................... chlul Loew.
IIyaline fascia not extending in front of the third vein; front shin-
ing below.......................................... stigml tio.rn Loew.
5. The dark band extending back from the stigma reaches across the
dismal cell .............................. ....................... (
This dark band barely enters the discal cell........... qumtcrniori Loew.
6. The hyaline band nearest the apex of the wing extends into the mar-
ginal cell; base of abdomen usually reddish........ abdominalis Loew.
The hyaline band does not extend in front of the second vein, the
second dark band not reaching the posterior margin of the wing.
amlrone Fabricius.
Euxesta spoliata Loew
1S67. Eirxesto spoliata Loew, Berl. Ent. Zeitsclhr., xi, p. 29S.

The collection contains nine specimens: Manati, March 5, 1914, June
27-29, 1915: San Juan, July 9-12, 1914; Mayagiiez, February.15-16,
1914; Arecibo, June 24-2G. 1915; Adjuntas, June 8-13, 1914; Christian-
sted, St. Croix Island, June 4, 1914.

Euxesta costalis Fabricius
17.!4. Musca costalis Fabricius, Ent. Syst., iv, p. 360.

Male, St. John Island, March 9, 1925; male, St. Thomas Island, Febru-
ary 25, 1925.
Euxesta eluta Loew
1867. Eiu.rsta eluta Loew, Berl. Ent. Zeitschr., xi, p. 312.

Nine specimens from the following localities: Adjuntas, June 8-13,
1915; Caguas, May 28-29. 1915; Manati, June 27-29, 1915; Ensenada,
June 14-19, 1915: Naguabo, March 7-9, 1914; Juana Diaz, February 12,
1925.
Euxesta stiginatias Loew
1867. Euxesta stigmatias Loew, Berl. Ent. Zeitschr., xi, p. 310.

Approximately fifty specimens from Adjuntas, June 8-13, 1915;
Caguas, May 28-29, 1915; Arecibo, June 24-26, 1915, July 30-August 1,
19:14: San Jnan, February 11-14, 1914; Manati, June 27-29, 1915;
Mona Island, February 21-26, 1914; Christiansted, St. Croix Island, June
4. 1911.
Euxesta quaternaria Loew
18(i7. Euscsta qluaternuria Loew, Berl. Ent. Zeitsehr., xi, p. 302. -

One female, St. Thomas Island, February 25, 1925, differs from Loew's
figure in having the third brown band extending along the fiscal cross-
vein.







CURRA., INSE('CTR OF I'ORTO RICO


Euxesta abdomhinalis Loew
1S67. Eli.rcsta abdomittalis Loew, Berl. Ent. ZeitsIhr., xi, p. 3. 7.

Twenty-seven specimens: Manati, March 5, 1914; Caguas, May 28-29,
1915: Arecibo, June 24-26 1913; Mayagiiez, February 15-16, 1914, Julv
24-29. 1914; Quebradillas, June 23, 1915; Corozal. July 2, 1915: San
.Juan, July 1-5, 1,15; Mlona Island, February 21-26, 1911.
There is some variation in the color of this species and the abdomen
imay be wholly dark, while tie wing hands are not altogether constant.

Euxesta anlnole Fabricius
1794. Musce anionle Fabricius, Enl. Syst., iv, p. 358.

There are more than fifty specimens from the following localities:
Manati. March 5, 1914, June 2-29, 1915; ('aguas, May 28-29, 1915;
Arecibo, June 24-29, 1915, July 30-August 1, 1914; Mayagiiez, July
24-29, 1914: Adjuntas, June 8-13. 1915; C'ayey, May 30-31, 1915;
Aibonito, June 1-3, 1915; San luan, July 9-12, 1914; Jayuya, January
6, 1915; Barros, June 4, 1915; Enseuada, *June 14-19, 1915; Mona Is-
land, February 21-25, 1914; St. Thomas Island, March 11, 1925; St.
Croix Island. March 4, 1925; Christiansted, St. Croix Island, June 1.
1911.
Notogranuna Loew
Notogranuna stigma Fabricins
179S. Muitsc stigma Fabricius. Int. Syst., supply p. 563.

In the collection are eleven specimens: Adjuntas, June 8-13, 1915;
Ensenada, June 14-19, 1915; Desecheo Island, February 18-20, 1914;
Mona Island, February 21-26, 1914.

Chaetopsis Loew

There is an undeseribed species belonging to this genus. Mr. C. W.
Johnson has given a key to the North American forms (Bull. Amer. Mus.
Nat. Hist., 1913, xxxii, p. 83). and Mr. E. T. Cresson, Jr., has published
notes on two of the species. During the determination of several speci-
mens notes have been added to Johnson's key and I give here a table of
species including these notes.
KEY TO SPECIES
1. Wills with four blackish-brown fasciae; legs black. the bases of the
tarsi reddish............................ qaadrifn sciatn, new species.
Wings with three or fewer dark fascie............... ............... 2
2. Wings with two or three fascia .............. .................








SCI 'TIJI SUR VEY OF P'ORT 10 90


Wings with only the small apical fascia ................ apicalis Johnson.
3. W ings w ith three fasci: e .............. .......... .. ............... 4
Wings with only two fascie .... .. ......... ..................... 7
4. Abdomen wholly greenish or greenish black ......................... 5
Base of abdomen broadly yellow; legs reddish ............. debilis Loew.
5. Cruciate frontals present in female and in male if the legs are red;
presentellars present in both sexes; at least the femora usually
partly blackish .................................................
Cruciate frontals absent in both sexes; prescutell rs albsent in female,
in the male reduced in size; legs reddish: basal dark fascia of the
wing evanescent posteriorly..................... fulrifrons Macquart.
G. Femora and tibia' blackish; male without cruciate frontals, female
with only tie lower pair........................... massyla Walker.
Femora often more or less blackish, the tibize always pale; male with
lower cruciate frontals, the female with a median pair as well.
riea Wiedemann.
7. Female with cruciate frontals (male?)................ heIdeli Johnson.
Female without cruciate frontals (male?) .... apiralis duplicate Johnson.

Chaetopsis fulvifrons Macquart

1855. Uroplhonr fulrifroas Maequart, Dipt. Exotica, Suppl.. v, p. 125.

Three specimens. San Juan, February 11-14, 1914.

C(haetopsis quadrifasciaIa, new species

Fi-. :'2

Wings with four blackish-ibrown crossl)ands, tie apical two connected along
the costa. Length, 4 to 5 mm.
Front rusty dark red, broadly bluish black above, tie parafrontals densely
white pollinose, each about one-fourth as wide as the frontal vitta; a pair of
fairly strong supra-antennal and a weaker pair of median cruciate frontals;
six pairs of frontals, the upper pair strong and reclinate, the others weak;
ocellars strong; post-ocellars divergent, fairly strong: the strong verticals
reclinate; blackish portion of the front grayish pollinose; cheeks dark red-
dish except below; face and occiput blackish, thinly cinereous pollinose; hair
wholly black. Palpi reddish. Antennie reddish, the third segment broadly
above and the arista, black, the latter bare.
Thorax and abdomen metallic bluish, the former moderately grayish pol-
linose. the pleura for the most part less thickly so. Three pairs of dorso-
centrals; very few short hairs on the mesonotum; scutellum triangular, the
apex acutely rounded.
Legs black; knees reddish; tarsi reddish brown.
Wings hyaline, with four brownish fascite, the first extending back from the
humeral crossvein and reaching obscurely onto the alula, the second extending
back from the stigma to the fourth vein, behind which it is grayish-tinged and1
reaches to the hind margin of the wing, the band broadening posteriorly (the
hyaline fascihe appear whitish in some views, making it possible to trace the








C'FRR.AN. INSECTS OF POA'TO RICO


course of the dark fascia on the posterior half) ; the third fascia extending
hack from the middle of the marginal cell to the posterior third of the pos-
terior crossvein, tapering gently and being broadly connected with the apical
fascia, which extends along the costa to the tip of the fourth vein but is
strongly nlnrrowed before reaching it. Apical cell somewhat narrowed apically.
Abdomen blackish apically. the tifth segment longer than wide. gently taper-
ing.
In the female the first tarsal segment is reddish, the others brown, the
anterior tarsi but little paler basally than apically.

Type, male, Barros, Porto Rico, June 4, 1915; allotype, female, San
Juan, February 11-14, 1914, in the American Museum of Natural His-
tory. Paratype, male, Miami, Florida, October 28, 1921 (8. G(raenicher).
in the Canadian National Collection, Ottawa.

SAPIOIMYZID.E

KEY TO GENERA

(All of the genera included in this table have the first antenlal segment not
elongate rind the anterior orbital bristle present.)
1. Anteri o orbital bristles directed inwards.................. ....... 2
Anterior orbital bristles directed backwards......................... :.
2. Ocellar bristles minute; face strongly projecting beyond the eyes.
Phyijscciwnu Macquart.
Ocellar bristles strong; anterior orbital bristles situated close to the
upper pair. ............................... Ciamipfop'rospelhai Hendel.
3. Sternopleuira with only a single bristle .............................. 4
Sternopleura with two bristles, the anterior one usually weak........ .
4. Front broader than long, from dorsal view concave in front: three
dorsocentrals .............................. Ncoripi honiurii Malloih.
Front not -oneave anteriorly; two dorsocentrals.
Psictdogripli onu ira Hendel.
5. Face strongly and evenly convex, highly polished ........ Cvlipe Halliday.
Face flat or convex only below, dull-colored ; intra-alar bristle always
present though sometimes small ................... [inefrtl I )esvoidy.

Physegemna Macquart

The collection contains but one species belonging to this genus.

'lIysegenua vittata Macquart

1847. PI'li.Cee/ria rittata Macquart. IMiptera Exotica. Suipld.. iii, p. 220.

Thirteen specimens from Porto Rico: Aibonito, July 11-17, 1914:
Mayagiiez. June 21-2;3, 1915; Cayey, May 30-31, 1915; AreciboA June
24-32, 1915; Jaynya, January 6, 1915.







C/-,''i'lVII'IC URVIHY OF P'ORTO hI1CO


Camptoprosopella IIendel
The only species belonging to this genus represented in the collection
has recently been described. The North American species are separated
in the following table.
KEY TO SPECIES
1. Wings hyaline or yellowish tinged ................................ :
Wings fuscous or marked with fuscous.............................. 2
2. Wings almost wholly tuscous; mesonotum normally with a median
brown vitta ..................................... dolorosa Williston.
\ ings with the crossveins, costal and apical margin fuseous.
nmculipeni nix Malloch.
3. Three dorsocentrals.............. ............................ 4
Two strong dorsocentrals; mesonotum often with a dark median vitta
in front; tarsi a little darkened npically.............. ditversi Curraln.
4. Anterior legs darker than the others, the tarsi and apices of the tili:e
reddish brown : arista densely short plumose.......... rcrt'licas Ioew.
All the legs of the same color; arista with long, loose plumosity.
rulyaris Fitch.
Camptoprosopella diverse C'rran
1926. Camptoprosopella diverse Curran. American Museum Novitates. No.
220, p. 13.

The PIorto Rican specimens examined are as follows: Nine from
Coamo Springs, July 17-1!. 1!914. and Arecibo, June 24-26, 1915; one
from Mona Island, Felruary 21-26. 1914. Part of the type material is
from Haiti and I have seen specimens from Jamaica.

Neogriphoneura Malloch
Neogriphoneura sordida Wiedelmain
1830. Sapromy:o sordid Wiedeiann, Ausser. Zweifl., ii. p. 456.

Twelve specimens from Porto Rico: Adjuntas, June 8-13, 1915;
Aibonito, Jnme 1-3, 1915, July 14-1:, 1914: Cayey, May 30-31, 1915;
Mayagiiez, July 24-29, 1914; two from Mona Island, Fe]bruary 21-26,
1914; two from Christiansted. St. Croix Island. June 4, 1911, and one
labeled St. Croix Island, March ', 1925.

Pseudogriphoneura IIendel

The three species from Porto Rico are separable as follows:
1. Thorax not opaque black and without very conspicuous vitt-e........ 2
Thorax opaque black with two ashy vitt;e which are connected behind
by the ashy scutellar margin...................... alborittata Loew.
2. Thorax shining yellowish ; scutellum with a black spot on either side
anolmala Curran.
Thorax blackish, gray pollinose with a brown spot t tile base of each
hair ......................................... cinracrec Coquillett.







CtfRIA I. INSECTS OF PORT RICO


Pseudogriphoneura albovittata Loew
1S62. Liiu.rniai albuvillatu Loew. Cent. ii. p. 79.

Four specimens from Mayagiiez, J.lne 21-23, 1915.

Psetulogriphoneura anomala Curran
1926. )erccia inoiiail Currin, Amer. Mlus. Novitates. No. 220. p. 13.

Male, Adjuntas, June 8-13, 1913: female. same data and male,
Naguabo, March 7-9. 1914. Occurs alho in Jamaica.

I'seudogriphoneulra cineracea Coquillett
11902. Laun.rnia cinlcracec Coquillett, Jour. N. Y. nt. Soc.. x. p. 170.

Mavagiiez, June 21-23, 1915. and Aibonito. .lJ e 8-13. 1915.

Caliope IIalliday

The three species before me, two of which are represented in the collec-
tion, are separable as follows:
1. 1ltra-nlair bristle absent ...................................... 2
Ilitra-al;r bristle present: chiefly blackish species ........ flin 'ipes 1 ew.
2. Scutellum with a large brownish apical spot enclosing the apical
bristles: abdomen with the bases of the segment broadly black
sea.(cllrta Curran.
Scutellum wholly pale: apical four segments of the anterior tarsi
black ............................................... hlute Coquillett.

Caliope sculellata Curran
1926. ('orliopI .scrutllatr (Cul'rrlan. Amer. Mus. Novitates. No. 220. p. 14.

The type female, agmuabo, March 1-9. 191 t, is the only specimen noted.

Caliope lutea Coquillet
Liiu.raniia Iicta Coquillett, Journ. N. Y. Ent. Sce.. x. p. 17!).

I refer six specimens here with some doubt. They differ from the pre-
ceding, as indicated in the key. Coquillett does not mention the black
apical four segments of the anterior tarsi and darker apical one or two
segments of the posterior tarsi. nor the narrow. obseure ferruginous vitta
in front of the dorsocentrals. The specimens are from Arecibo, March
1-4. 191-, June 24-26, 1915 and Aibonito. June 1-3, 1915.

linettia Desvoidy

The collection contains four species belonging to this genus, which is
separable from S pronyza by the presence of a distinct intra-alar bristle.







C('IE'7'TIF'IC SURVEY OF PORTO RICO


KEY TO SPECIES
1. Face uiicolorous ..................................................
Face with an opailue black spot in the middle below.. slossouw Coquillett.
2. Scutellum with a black spot on either side........................... 3
Scutellutu wholly yellowish ............................ (ibonito Curran.
8. Black seutellar spots lying beneath the apical seutellars.... moni Curran.
Seutellar spots situated between the first and second pairs (f scutellars
sororiIa 1Williston.

Minettia slossonew Coquillett
1 )5S. Siprom!/za s.lossoxsomj C(oquillett, Can. Ent.. xxx, p. 277.

There are representatives from the following localities: Cayey, May 30-
31, 1915; Mayagiiez, .luly 24-29, 1914; Adjuntas, June 8-13, and 26,
1915; (hristiansted, St. Croix Island, Jnne 4, 1911, March 2, 1925:
Charlotte Amalie, St. Thomas Island. June 3, 1911: Mona Island, Feb-
ruary 21-26, 1914.
There is a great deal of variation in the markings on the abdomen. In
one specimen there are only spots on the fourth segment while in others
all the segments bear black lateral spots and paler median vittae and
apical segmental fascia?, but I can find no characters upon which even
the extreme forms could be separated. Malloch considers this to be only
a variety of octopmucla, Wiedemann (nctopuncdata auct.) but, as all the
specimens are relatively constant in the markings of the thorax and
oclopuncia is not represented in the collection, I retain the name in the
specific sense. However, these specimens do not agree with Coquillett's
description in that they all bear prescutellar bristles while Coquillett
states that there are no acrosticals. If both Malloch and Coquillett
agree, these specimens must represent an undescribed species. Also,
it must be borne in mind that Wiedemann may have overlooked the
pleural spots, in which case there could be no doubt about these speci-
mens representing the true ortopuncta, as I suspect is the case.

Minettia aibonito ('Crran
1S211. .Hinctlii aibonit( (C'urran. Amer. Mus. Novitates. No. 220, p. 14.

The type series from Porto Rico: male, Aibonito, June 13, 1915:
female, Alayagiiez, February 15-1i, 1914; male. Adjuntas, June 8-13,
1915; male, Jayuya, Jan. 5, 1915; San Juan, February 11-14, 1914: two
males and female, Naguabo, March 7-9. 1915; female, Isabela. January 4.
1915; male, Caguas, May 28-29, 1915.







CURRAL I INSECTS OF POR1'O 1 C('O


Mlinettia sororia Williston
IS96. Suproniyzza sorori( Williston, Trans. Ent. Soc. London, p. 385.

One specimen, Aibunito. July 14-1.7 1914.

SION CITAEII)LE

This family is represented by a single species.

Lonchaea Fallen
Lonchaea nigrocterulea Ma;lloch
1920. Lonohaeu nigro'vcrulc'eA Malloch, Can. Enli., lii, p. 246.

Four specimens from Mayagiiez, July 24-29, 1914, and Tallaboa,
near Ponce, July 23, 1914.

MICIiOPEZID.E

DETERMINED BY E. T. CRESSON. JR.

Taeniaptera lInsciva ( Faluririns)
1798. 3Musca lIscira Fabricius, Syst. Enl., Sulppl., p. (54.

There are twenity-four specimens from Porto IRico: Adjuntas, June
8-13, 1915; Fajardo, J.anuary 19, 1914: MAanati, June 2;-29, 1915:
Mayagiiez, ,uly 21-2). 1914 ; San Juan, .July 9-12, 191 1: C(oaimo Springs,
July 1"-19, 1911; Arecibo, June 2 [-26, 1915.

Systellapha scurra Enderlein
1922. Syistcllhphl, scurrat Enderlein, Arch. Natg. I erlin Al.. A "s, IIift 5,
p. 191.
The twelve specimens from 1'orto Rico are distributed among the fol-
lowing localities: Ca yoy, May 30-31, 1915: Mayagiiez, July 21-29, 1914:
Adjuntas, June 8-13, 1915: Naranjito, July 6, 1915.

loloploheiloma fasciata (Falricius)
1775. 1u.scrm fusciata Fabricius, Syst. Ent., p. 7S1.
1926. IHoplrltilhimoin fxciv(ta (Cresson. Trals. Am. Ent. Sue., lii, p. 27'2.

There is a single specimen from Fajardo, January 19, 1911.

Mieropeza limbata Imoedecr
1885. Microp ezxa limbart Ii eder, Stett. Ent. Zeit., p. 347.

Of this species, which Roeder described from Porto Rico, there are
representatives from the following localities: Adjuntas, June 8-13, 1915;
Mayagiiez, July 24-29, 1914.







SCIE'\T/IFIC STURIEY OF I'POrTO I1ICO


TETANOCERIDI)E

The single species representing this family belongs to the genus ,vpe-
don Latreille.
Sepedon macropus Walker
1849. Nepcdoji noropus Walker, List Dipt. iv, p. 1078.

Five specimens from Porto Rico: Caguas, May 28-29, 1913; Cayey,
May 30-31. 1913: Coamo Springs, July 17-19, 1914.

MUSCIDzE

To this family belong very many injurious flies, including such well-
known pests as the house-fly, tsetse-fly, various root-maggots, etc. A few
of the members of the family are beneficial in that they feed upon small
insects, while the scavenging habits of many cannot be looked upon
with disfavor. Even though Malloch has done much to systematise the
study of the family, the determination of the Neotropical species affords
much difficulty and, until the types of the older authors have been
studied, little can be done, since species in several genera will often
agree with a single description.
Most of the genera included in the following key occur in our region,
but some, although represented by species from adjacent islands, have
not yet been recorded from I'orto IPico or the other islands in which we
are at present interested.
KEY TO GENERA
1. Arista plumose, pubescent or bare .................................. 2
Arista pectinate, with long rays on upper side only; proboscis long.
broadened basally ............................... Stonmo.rys (eoffroy.
2. Fourth vein with a broadly rounded bend or not at all curved forwards :S
Fourth vein angularly curved; rays of arista spreading more or less
fan-like ......................................... Musca Linnaeus.
3. Thorax with only one pair of presutural dorsocentrals; anal vein
never reaching the wing-margin; seutellum never pubescent beneath 4
Thorax with two or more pairs of presutural dorsocentrals .......... S
4. Three pairs of strong posterior dorsocentrals....................... 5
Two pairs of strong posterior dorso,-entrals.........BitlhorntochatticF Stein.
.. Lower squamal lobe much longer than the upper................... 6
Lower squamal lobe scarcely longer than the upper, HIoploiuNsteFr Itondlni.
6. Posterior tibime without a long postero-dorsal bristle near the middle 7
Posterior tibi:e with a very long postero-dorsal bristle situated near
the middle ................................... Xcoderc iopsi.s 'Malloch.
7. Posterior tibirP with a very long median anterior bristle situated close
to the antero-dorsal one.......................... Curicei Desvoidy.
Posterior tibi.e without an anterior bristle at the middle, the antero-
ventral bristle, if present, not unusually long ........ CWn.osia lMeigen.








I'UJ?1Ll=V, INSIJUETS OF POJITO) RI(f()


S. Anal vein not extending nearly to the wing margin ................
Anal vein extending to the wing margin; under-surface of the seutel-
lunm with distinct, very fine hairs apically..............Clythea Sehuabl.
1. Sixth and seventh veins more or less parallel or diverging, the seventh
never strongly curved towards the tip of the wing ................ 10
Anal vein very short, the seventh strongly curved and usually cutting
across the end of the sixth a little beyond the apex of the latter
Funnia Desvoidy.
10. Middle of the pteropleura bare or the palpi not greatly broadened.......11
Middle of pteroplcura with conspicuous pile; palpi flat and very broad,
at least apically................................... Lispa Latreille.
11. Sqnamal ridge bare .............................................. 12
Squamal ridge with long hairs; middle tibiaw with ventral bristle.
Orlitcllifa Desvoidy.
12. Posterior thoracal spiracle elongate, situated longitudinally or a little
olliqluely ...................................................... 13
Posterior spiracle triangular or more or less circular, but little longer
than wide, the opening small..................................... 15
13. Middle tibime without ventral bristle................................ 14
Middle tibibe with ventral bristle .................... 'yrellia Desvoidy.
14. Base of the third vein bare .......................... Mluscina Desvoidy.
Base of third vein setulose ......................... Mlorclla Desvoily.
15. Arista thickened on its basal half, its penultimate segment two or
three times as long as wide: front in both sexes very wide, forming
a sharp angle with the face; facial depression deep, narrowed below.
Tetrlatien.r Berg.
Arista tapering from near the base and otherwise different.......... 16
16. Third vein bare, or, if bristled, tie sternopleurals arranged 1-2 or 1-1. 17
Third vein setulose basally; fourth vein strongly curved forwards:
arista long plumose; steruopleurals 2-2............. MIospil/o Rondani.
17. Third vein bristled at base; fourth vein conspicuously curved for-
wards: sternopleurals 1-2.......... ........ Leuraionelia Macquart.
Third vein bare, the fourth at most gently curved forwards.
Limnoplnot'a ID esvoidy.

Bitloracochaeta Stein

Two species belonging to this genus are in the collection and are
separable as follows:

Legs mostly yellow, the anterior femora sometimes largely black.
lencoprocta Wiedemaun.
Legs mostly black, the trochanters, bases and apices of femora and the
bases of the tibiae, reddish....................... lraricornis Coquillett.

Bithoracoclheta leucoprocta Wiedemann

1S30. Anthomyia leucoproca Wiedemani. Ausser. Zweifl., ii, p. 43;2.
185G. Cociiosia antica Walker, Dipt. Saunders., p. 367.







SCIENTIFIC SURVEY OF PORTO RICO


One female, Barros, June 4, 1915. There are also specimens from
Jamaica and Cuba.

Bithorarorhaeta varicornis (oquillett

91100. C('oisia cu'ricornis Coquillett, Proc. U. S. N. M.. xxii. p. 256.

Twenty-six specimens from Porto Rico: San Juan, February 11-14,
1911: Manati, June 27-29, 1915: Coamo Springs, July 11-19, 1911:
Arecibo. June 24-26, 1915; Aibonito, June 1-3, 1915; Adjuntas, June
8-13, 1915; Jayuya, January 5. 1915; Caguas, May 28-29, 1915 and
Santurce, January 1, 1921.

Neodexiopsis mIallohl

The single representative of this genus. is undescribed.

Neodexiopsis rex. new species

Head, thorax, apical two abdominal segments and the tarsi, Ilackisli, else-
where reddish yellow. Length, 4.5 mm.
Mdlc. Head with dense grayish-white pollen, the frontal vitta blackish with
a linear brownish-yellow vitta extending from the ocelli to the lunule. Upper
pair of frontals reelinate, fairly strong, a very strong pair situated at the
anterior third of the front, the other four pairs weak. Hair on the lower half
of the occiput yellow. Face slightly narrower than the front. Proboscis
blackish: palpi yellow. Antennae blackish, the base of the third segment
brownish red: arista short plumose.
Thorax grayish, the mesonotum with five brown vitthe, the outer ones broad
and lying wholly behind the suture, where all the vittrT are inclined to be more
or less fused: very few hairs. Scutellum with four marginal bristles and
scattered discal hairs. Pleura with pale yellowish hair, the bristles black.
Cox:e pale, whitish pollinose. Anterior and middle femora each with a row
of very long. slender bristles beneath, the posterior pair with a row postero-
ventrally, antero-ventrally and antero-dorsally, the hair unusually long and
line, especially towards the lower edges where it forms ciliate rows. Anterior
tibit; with a fine posterior bristle situated a little beyond the middle: middle
tibiat with :an antero-dorsal bristle at the apical third and a postero-dclrsal one
at the middle; posterior tibiae with three long, fine bristles, a dorsal one at the
apical fourth and two at the middle, one on either side above. Tarsi simple:
pulvilli large. yellowish.
Wings einereous hynline, the veins brown except at the base. Squalnma
whitish, the lower lobe large. Halteres reddish yellow.
Abdomen reddish yellow, with the third segment above, the fourth wholly
and the genitalia. blackish; the pale color covers the whole of the third seg-
ment towards the middle below, thence gradually narrows so as to appear as
basal triangles laterally above. The abdomen is grayish-white pollinose except
for very large apical dorsal triangles, which cover most of each segment and








CURRAX, INSECTS OF I'ORTO RICO


are very broadly connected with each other in the middle. Genitalia thinly
grayish pollinose: sternites wholly pale. Hair black dorsally, yellowish ven-
trally.
Type, male. Luquillo National Forest, Porto Riic'. February 18, 1925
(above 1500 feet on way to summit of El Yunquc).

Ccenosia Meigen

There are representatives of two species, one of which I have not been
able to determine.
C(mnosia flavipes Williston
1S!1(;. 'i umosia flucipCs Williston, Tr;nis. Ent. Soc. London. p. .'170.
Two females, Charlotte Amalie, St. Thomas Island. June 3, 1911.
('oqiillett has reported the species from Porto Rico.

Cnlosia species

Five specimens from Jayuya and Aibonito. This form differs from
the preceding in having the femora mostly and the tarsi wholly blackish.

Tetramerinx Berg

There are four specimens from San Juan, February 11-14, 191-1, which
belong to a species of this genus.

Calytlea Schn nh
(alythea crenata Bigot

1885. Trichoplicr.s ercritus Bigot. Ann. Soc. Ent. Fr.. p. 2S2.
Nine specimens from the following localities: Mayagiiez, June 15-16
and 21-23, 1915; Aibonito. June 1-3, 1913: t'ayey, May 30-31, 1915;
Charlotte Amalie, St. Thomas Island, June 3, 1911.
There may be some doubt about the identification. The wings are
more brownish-tinged than in albicincia Meigen, the squams are broadly
brown on their borders, and the posterior femora bear a row of postero-
ventral bristles on their basal two-thirds. The black abdominal band
on the third segment is very broad and hardly excised on the apical
half near the middle.
Fannia Desvoidy
Fannia femoralis Stein

1897. flomiolomryia femoralis Stein, Berl. Ent. Zeitschr., xlii, p. 282.
More than thirty'specimens, mostly from Mayagiiez, February 15-16,
1914. also from San Turce, January 1, 1914, Ensenada, June 14-19.







SCJIEE''TIFIC SURVEY OF PORTO RICO


1915, and St. Croix Island, April 6, 1925. Other specimens are from
Haiti and the Dominican Republic.

Lispa Latreille
Lisli rufitibialis Macquart
1543. Lispa rufitibiolis Macquart, Dipt. Exotica. ii. (3), p. 1(S.

Coquillett lists this species from Fajardo and Culebra Island.

Myospila Rondani
Myospila obsoleta Brauer and Bergenstammu
l '91. 'hasiophaina obsoleta Brauer and Bergenstamm. Denkschr. A. Aka. ien,
lviii, p). 390.
About twenty specimens from Porto RIico: Adjuntas, June 8-13, 1915;
Arecibo, June 24-26, 1915; Jayuya. January 5, 1915.
There are also specimens from Haiti, Cuba and Jamaica.
This species is somewhat variable, especially in the color of the
squanue: the border of these varies froln blackish to yellowish although
the upper lobe is almost always black. It is quite possible that an older
name will eventually be found for this species as it is evidently common.
Its affinities are rather obscure, but it fits Myospila most satisfactorily
and does not seem worthy of a distinct genus. The prosternum is hare,
arista very long plumose, head short, sternopleurals 2-2, posterior thor-
acic spiracle sub-triangular, not elongate, the venation as in -I. medita.-
bunda Fabricius, the antenna usually reddish or luteous and the rather
thick palpi brownish red to brown in color.

Limnophora Desvoidy

Two of the species belonging to this genus I am unable to determine
satisfactorily but have prepared a key indicating the characters upon
which they may be separated.
KEY TO SPECIES
1. Arista distinctly, though very short plnmose ........................ 3
Arista bare or only microscopically pubescent........................ 2
2. The frontal triangle of the female reaches not more than half the
distance from the ocellar triangle to the antennle......... species No. 2
The frontal triangle of the female reaches almost to the antenme
(female) .............................................. species No. 1
.". Dorsal aristal rays at least half as long as the width of the third
antenna segment...................................... arcrata Stein.
The dorsal aristal rays are not over one-fourth as long as the width of
the third antenna segment, but little longer than the basal thickness
of the arista (male) .................................... species No. 1







CURRY IA IVSEC'TN 01, POO TO Jl('O


Limnollphora arcuata Stein

[897. Limnophora a(rcuatat Stein. Berlin Ent. Zeitschr.. xlii. p. 201.

Male, Xaguabo, March 7-9, 1914. and male. Mayagiiez. June 21-23,
1915.
Liniiopliora, spleies No. 1

Male, Arecibo, March 1, 1914: female, Arecibo, June 1-3, 1915;
female, Aibonito, July 14-17, 1914: two females. Aibouito, June 1-3,
1915: male, Adjuntas, ne 1915; two femalAdjundtane 191le. juntas. June 8-13,
1915: two females, Barros, June 4. 1915 ; female. Mayagiiez, June 21-23,
1915.
Linulophlora, species No. 2

Two males and twelve females, Barros. June 4, 1915; two females,
Adjuntas, .June 8-13, 1915:3 male, Areciho.. Jne 24-261, 1915: female,
Aibonito, June 14-17, 1914; two females, Caguas, May 28-29, 1915;
female. Manati, March 5, 1914; female, Mayagiiez, February 15-16, 1914.

Stomnoxys Geoffroy
Stomoxys calcitrans linnaeus
175TS. Coaops calcitrens Linnaeus, Syst. Nat.. Tlth ed.. p. ;l04.

The species is not represented in the collection but has been recorded
by Coquillett from Viequis Island and there are specimens from ITaiti.

Musca Iiinmens
Mlusca domestic Iinmnens

Numerous specimens from t the following localities: San J.uan, Manati,
Santurce and ('hristiansted. St. Croix Island, Jannary, March, June
and July.
Pyrellia. Desvoidy
Pyrellia ochlriornis \ietlemanni
1830. MJuisc oc/hricor ns Wiedcmann, Ausser. Zweifl.. ii. p. 40S.

Coquillett has recorded this species from Portoo Ibo and I have seen
it from adjacent islands.

Morelli, D)esvoidly

The two species in the collection are separable as follows:

Humeri yellow ........................................... scapuvlatu Bigot.
Humeri metallic........................................ riolucea Falricins.







,SCIEA'TIF]C SURVEY OF PORTO RICO


Morellia seapullata Bigot
1S7S. Morellia scopulota Bigot, Annales Ent. Soc. France, p. 75.

There are representatives from the following localities: Aibonito,
June 1-3, 1915; Cayey, May 30-31, 1915; Caguas, May 28-2'9, 1915;
Coamo Springs, December 28, 1914; Mayagiiez, February 15-1 1914;
Naguabo. March 7-9, 1914; St. John Island, March 9, 1925: St. Thomas
Island, February 21, 25 and 28, 1925; St. Croix Island, March 3 and 4,
1925.
Morellia violacea Fabricius
105. Musca riolacca Fabrieius, Syst. Ant].. p. 2S8.

This species is represented by specimens from the following localities:
Adjuntas, June 8-13, 1915; Arecibo, June 24-26. 1915; Aibonito, June
1-3, 1915: Mayagiiez, July 24-29, 1914.

CALLIPHOMIiILE

There are five species belonging to this family in the collection, repre-
Ssenting two genera.
Cochliolmyia Townsend

The two species in the collection may be separated as follows:
Cheeks wholly yellow pilose ; white lpllinose spots on1 the fIourth labdlomnin1al
seg-ient large, transverse, broadly separated from each other.
macellaria Fabricius.
Cheeks with considerable black hair anteriorly: white pollinose spots on
the fourth abdominal segment triangular, approximate.
luniuria Wiedomann.
Coclliomyia nmaellaria Falricius
1775. Mlus o miorcclluria Fabricius, Syst. Ent., p. 776.

There are representatives from the following localities: Aibonito, June
1-3, 1915, July 4-17, 1914; Coamo Springs, June 5-7, 1915: Ensenada,
June 14-19, 1915; Jayuya, January G, 1915: Mayagiiez, June 21-23,
1915; San Juan, July 1-5, 1915; St. John Island, March 5, 10, 1925:
St. Thomas Island. March 12, 192'5; Mona Island, February 21-26, 1914;
Christiansted, St. Croix Island, June 3, 1911; St. Croix Island, Febru-
ary 28. 1925, May 5, 1919.

(ochliomyia laniaria Wiedemann
18:0). .MIIIuvs taniariai Wiedemann, Ausser. Zweifl., ii, p. 406. (tntriria,
error.)








CURRAX, INSECTS OF PORTO RICO


Several specimens from Jayuya, January 6, 1915.5: Naguabo, March
7-9, 1914; Mona Island, February 21-26, 1914: St. John bIland, March
9, 1925; St. Thomas Island, February 25, 1925.

Lurilia Desvoidy

There are examples of two or three species in the collection. The
species which probably occur in our region may be separated by the table
which follows:
KEY 1T SPECIES
1. Males ........................................................... 2
Females ......................................................... 4
2. Frontal bristles confined to lower half of front.......... riclu S1han1;1nn.
Frontal bristless occupying the lower two-thirds of the front .......... .
3. A pair of isolated frontals before the ocelli ............... rcllri Wialker.
No isolated frontals .............................. hirtiforcreps Shannm n.
4. "lieard" black ................................... hirtiforii, p. Slhalnn ll.
hBeard largely pale.............................................. .
5-. SqIalIilnu wllite.................................. hirliforcpi S lhannon 'i
R(lutilnEp rowi.., b. ................ ................... ..............
(1. Front as wide as the length of the third antentnlal segment.
cla ria Walker.
Front not nearly so wide as the length of the third antenna segment.
rica Shanimon.
Lucilia rica Shannon
1926. Lucilii, rica Shannon. I'rie. Ent. Soc. Wash.. xxviii. I,. 132.

Female, Mayagiiez, July 24-29, 1914 ; female. Xaranjito July 6, 1915;
female, Arecibo, June 24-26. 1915.

Lucilia hirtiforceps Shannon
1926I. ,L ciiri hilitiforrcep. Sli anl1 11. Proc( Enlt. Soc. WVasl.. xxviii, p. 1:::.

Male, Mayagiiez, February 15-16, 1914. Two females, with the same
data, and a female from Desecheos Island, February 18-20, 1914, differ
in having the squamne white but show no other differences from examples
of the speces before me.

SAR('OPIIAGtD-E

The majority of the flies belonging to this family are scavengers, some
are parasitic upon grasshoppers while others sometimes cause myasis
in animals. The family is well represented in the Islands, no less than
eighteen species being present in the collection. In the key to the genera
I have included all the American genera of the Sarcoplagina, of which I
have representatives.









C:./EA TI/'C SLU'VlEY OF P'ORTO RICO


KEY TO GENERA
1. Arista plumose or strongly pubescent.............................. -
Aris a bare ................................ ....... .. 21
2. Lower lobe of the slqulima Ihare allove ............. ................ 4
.Lwer lobe of the sqnuamm with long hairs on upper surface..........
Prolellra ar................... q..i....... lt l ('111rran1 and Walley.
Propleura hairy IType: fririttfuf C'urran, Brazill. Nqituiotrr idr s Curran.
4. Three sternopleurals............................ ................. 11
Only two sternoplenrals ............................................ .
5. Hairs (in the sides of the snctellum extending at least to tl le power
edge outside the mInar.iinals ...................................... I
Sides of the sectelluin wholly without lhirs outside the marginal
bristles: both sexes with orbitals; almost wholly grayish pollinose
species with reddish legs.......................... Camptopsi Aldrich.
G. A rista plum ose ... .............................................. ..
Arista lpubescent.................. Wohilf thrtit Brauer & IBergenstanln.
7. Abdomen largely pollinose. usually tessellate........................ S
Abdomen shining black. ......................... P'hrissopodi AlacM;.quart.
S. Propleura bare.............................. .. ... ................ 10
I'ropleurn hairy. the lairs sometimes quite line and pale............ )
9. Frontal bristles descending to belw the base of the antenI;e and
solnewhat diverging below........................ Xotorachie Aldrich.
Frontal bristles not extending helow the base of the antennaa.
Hnarpgopygu Aldrich.
10. Notopleura at most with two bristles and in addition a very weak
anterior one; front of male with at least one orbital: first vein
som etim es bristled........................ ....... .............. 19
Notopleura with several hairs in addition to the two large and two
weak bristles................................... Str(roplagau M1eigen.
11. Fifth vein not setulose ............................................ 12
Fifth vein setulose ............................. .. lohnso nia Coquillett.
12. Proplenra bare .................................... .............. 14
I'ropleura hairy on median portion .................................. 1
1M. Third antenna segment but little longer than the second: arista
short nlumose: blotl sexes with orbitals ............ Harblckiu Aldrich.
Third antennal segment usually twice as long as the second: male
without orbitals (Boettehcria Parker) ............ Sorcophal Meigen.
14. Sternopleurals situated in an almost straight line or forming a very
shallow triangle .............................................. 15
Sternopleurals 2-1. arranged in a very wide triangle.... Agria Desvoidy.
15. Head with pale hair at least below the neck ......................... 1
Head devoid of pale hair except on the proboscis..... Sareofathrfti Parker.
Iii. Third antennal segment more than twice as long as tie second : cheeks
less than half as wide as eye-height: parafacials rarely with more
than two rows of hairs .......................................... 17
Third nnteinal segment less than twice as long as the second : cheeks
more tllan half as wide as eye-height : parafacials with several
irregular rows of hairs ........................ Emblemasonit Aldrich.








CURRAJLN. INSIECTS OiF /l01,1710 RIWO


17. Arista normally plumose.................... ..... .............. 1
Arista with several rows of hairs dorsally and a single row of sliorter,
finer hair s ventrally; vibriss;e situated far :above the oral nargiln.
S'trrzttoiphagint new genus.
I,,. Front of male without orbitals: invariably more than a single lair
oni the lnotopleura in addition to the two bristles, or tile sterno-
lleurals are all well developed and the apical c-ell ends well before
the apex of the wing ........................................... 20
Front of manl, with one or two orbitals: at most a single hair on the
notopleunra ill addition tot the two bristles: apical cell ending rather
near the apex of the wing ...................................... 19
10. P'arnfacials with two or three rows of hairs: metacephaln t swollen.
NSarothrompujia Brauer alnd Be rgenstmllm.
I'arnfaeials witl single row of hairs;: inetaeephialon not conspic-
nously swollen ............................... ar'cophag!ula Macquart.
20. First vein setulose .............................. Il lictbia Coquillett.
First vein are. .................................... Sarr oplhaga Meigcn.
21. A row of orliitals ill both sexes. I'acl!yoltphilmtIln1usit lIrauer & Bergenstamm.
With at liost two orbitals. ......................... n c'i ttla ii( iiTinia Malall:t.

Johnsonia ('oquiillett
Johlnsonia bivittata, new spteiies

Differs froni ti(1 remaining species il having the abdomen black, tile fourth
segment iobsculrely red oni tie basal half. Length. 3.75 minm.
Mtler. Headt cineirei'ous pollinose the face white; frontal itta] brown, Ihalf as
wide as parafrontal; front a little more than half as wide as eye, slightly
widening anteriorly: four pairs of frontal bristles, the anterior pair strong,
ilie single pair (i ofrbitals situated very close to the second upper frontal:
(ocelanrs very weak, verticals strong. Occiput with scattered black bristly
hairs: llheeks lone-sevetl t tile eye-height. Palpi brown. Antennae brownish
the ilse t f thei third segment reddish: nrista. with long. .sparse rays.
Thorax gray pollinose. with two broad bllack vwit:e bordered ithl brownisli
pres.icutellars very weak; dorsocenltral.,s 2-3; sterniopleurals 1-2: two pairs of
strong seutellars and n pair of dis-al hairs. Iropleura Iare; infra-squamal
sliinIules alisent.
l~egs black, the femora partly gray lpllinotse; middle femora without comb;
pulvilli elongatc, luteous.
Wiings cinereous hyaline, the bristles on the first, third anil fifth veins long:
apical cell very short petiolate: posterior crossvein in the middle between
the anterior crossvein and the bend of the fourth vein.
Abdomen lhlack ill ground color, the fourth segment obscure reddish oin a
little more than tle ibsal half. the hasal two-thirds of each segment gray
pollinose, tlle pollen increasing in width laterally, the (laex of each segment
broadly shining: on the intermediate segments there is an evident broad.
diffuse. median black vitta while there is a narrow nare vitta on the fourth
segment. The bristles are evidently as inl clcganus Coquillett. Genital seg-
ments reddish, the appendages brownish or blaekish. There are no bristles on








SGU'IlSTIFIC RURI1VYO OF PORTO RICO


the first genital segment and the anterior claspers are decidedly more slender
than figured by Aldrich for elegans.

Type: male, Aihonito, P. RI., July 14-17, 1914.

The three described species of Jol-hnsonia are -eparated in the following
table.
KEY TO SPECIES
1. Fourth abdominal segment black on apfical third or more. birittioti Curran.
.Fourth abdominal segment reddish on apical half or more...........
2. Anteniep red, the third segment blackish on apical half; bristles
moderately long: legs reddish brown to reddish. (S. 7. S.)
elelgans Coquillett.
Anteni;e black. the apex of the second and base of third segment,
reddish; bristles very long; legs black. (Peru.)........ rxtosn Aldrich.

Sarcofahrli a Parker
Sarcofahriia capitata, new species

Fig. 33

Male genitalia somewhat as in Natreophiay( pellhtifi Aldrich; first and third
veins bristly; fifth sternite not divided; acrostleals absent except for a weak
pair of presentellars. Length, 5.5 nnm.
Jltlc. Head with pale ochreous pollen, which becomes quite pale below, the
hair wholly black: front five-eighths as wide as eye. with almost parallel sides,
with two pairs of proclinate orbitals, the upper pair very weak, and six pairs
of frontals, the upper two reclinate. the lower pair situated below the base of
the antelnnm; there is also a fine uhir between each of the bristles in the
frontal rows; ocellars weak; outer verticals distinct. Cheeks one-sixth the
eye-height; parafacials with two or three black hairs near the orbits below
and some inconspicuous yellowish hairs above. Palpi missing. Antenmie
blackish, the base of the third segment reddish, reaching five-sixths the dis-
tance to the oral margin; vibrissae level with oral margin. Arista long
plumose.
Thorax gray pollinose, with three black, brown pollinose vitte. the median
one extending to the middle of the scutellum, the sides of the scutellum
narrowly bare. Dorsocentrals 2-3; sternopleurals 1-1-1; two pairs of strong
marginal scutellnrs ani a weak. cruciate. sub-apical pair, tie disc of the
scutellum with short, sparse hairs.
Legs black, the femora in part gray pollinose; tibi:e more or less reddish
brown.
Wings cinereous hyaline: epaulet black. Supialie while: halteres yellow,
the knob more or less infuscated.
Abdomen grayish pollinose, the second to fourth segment each with the apex
and broad, sub-triangular spots towards the sides bare or thinly brownish
pollinose, not tesselate. First two segments without dorsal bristles. Hair
of the abdomen black, rather abundant and fine on the under side Lateral
view of the genitalia as in Fig. 33.







('TIiiAN. INSECTS OF PORTOi ICO


Type. male, [Mavagiiez, 1'. R.. July 24-2!). 1!914 (i(rounds of Porto
RIico, Agricultural Expiriment Station) : paratype, male. 3layagiiez, Feb-
ruary 15-1,. 19]14 (on the mesa).


Fig. :33.-Sarciiofthlrtia Crlpiitato. new species. Mnl genitalia, lateral view.

This species differs from those described by Parker in the shape of
the genitalia and the presence of orbitals in the male. Notwithstanding
the presence of these latter it seems to belong to Sarcofahrtia. The
unusually large outer forceps (auxiliary plate) at once distinguish this
species from the others, as in all the species described these are small,
vestigial or far removed from the posterior forceps.

Sarcophaga Meigen

The representatives of this genus contained in the collection may be
separated as follows:
KEY TO AIALES
1. ('heeks with black or cinereous hair. ............................... 2
Cheeks clothed with golden hair....................... .capitata Aldrich.
2. Three or four sternopleurals, the second and third weak. the first and
last always strong. ............................................ 3
Two sternopleurals; no presutural nerosticals or dorsocentrals.
hillifcra Aldrich.
3. Fourth abdominal segment not golden pollinose ...................... 4









N(CI/AE 3TI t' /LT.' ,'\ OF 'PORTO'l' RI'O


Fourth abdominal segment almost ill golden lpollinose .... p. ltittu Aldrich.
4. Four postsuturld do r-s1ent iraIs. the aniteriorl ones weak; 111) preslturall
Lare oste:IIl ........................................ ....... . 5
Three stl)rollt ]oItsultllrall dorsocenttra ls; presntnral acrosticals mo1d-
erately developed: posterior forceps algunlate behind at the acllal
third and with dlese. short. bristly liirs inear the apex.
e' itliilati Aldr-ich.
5. At least two piirs of string i)ostsllturaiil dolrsciivetrtl';s: pire'iitiural
i(orsoveltr ls oi Illoder'i tely strol't n ................................. (
(iOnly the postelrior p1air of dolursioteitrtals strong... plijithoptnit Wieileit itillt.
6. Po'sterior forceps wholly paile. lrind, the apex concave.
s, rn el' 11odo n tix Town\\ ll .
'osterior fior''epis bllkii on he aipi t ht ic tlirdl. oiinted at the etll.
hIt leri A lld rich.
KEY T(I FEMALESS

1. Cheeks with ciiierlt oulls or black pi le.. ................................ '
cheeksk s willt golden pile............... ............ . p. itoitii Alilricih.
2. Three or four sterioplenl rals ........... ........ .....................
)lOnly two sterl' opleln'als ............... .. .......... .. lillifri' l Aldrich.
31. Foitrti th a lbd' llinal se.r'lile t not golden pollillose............ .. .. . 4
Foiirth allltiiilin al se ltl(lentt largely golden l ollinose........ ip'laltln Aldrich.
4. Four pairs of strong p' stsntlral dol'rso centerr ls or the aniteriol oInes
short or weakly. .............. .. .......................... ..
Three palirls of strolling po(stsnutnrll dorsa cintralls; first getnital sengileiit
briighit red. not emlur'itminte na ove ................. culmrini atet Aldrich.
5. At least two pairs of stronl'g postsutural dorsocentrals. .............. (
Only onet paiir of strout postisltnllu (ldolrsioeentrals, the others short
lut fairly tont ... .................... .... plinlthop!i a/it W ieldemlu aitl.
i. Clleeks with pale hliil' oi at least thie i)sterior' hlltf: second a lidolminal
se iien lt without distinct median inarginals ............ bitleri Aldrich.
Cheeks wholly lilack-liaired : second allbdonminal segment with lmediall
mlargiln s................... . .......... ster nilodo ti Townseitl.

Sarcophaga capitata Aldrich

1916. Sorm-opha' ii iapittti .\hldrii. Slarcophli. and Allies. p. 205.

Five specimens from Porto RIico: male, Aibonito, J.une 1-3. 1917':
niale, San Juan. JlU1v 1-.. 19113: male, Adjuntas. June 8-13,. 1913:
female, ('aye.. MlIvay :8-31, 1913: female., Iayagiiez, June 21-2:3, 1915.

Sarcollhaga Iillifera Aldrich

11(;. N*irr'op uiiii hiillifci l Aldricih. Salreoph. and Allies, p. 211.

One male. St. Thomas Island, March 1. 1925.

Siarcolphaga peltata Aldrich

1!1(j. Su'rrcop/ia t / pltaiit Aldrich. Sarcoph. and Allies, p. 216.




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