Title: Florida Entomologist
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Title: Florida Entomologist
Physical Description: Serial
Creator: Florida Entomological Society
Publisher: Florida Entomological Society
Place of Publication: Winter Haven, Fla.
Publication Date: 1928
Copyright Date: 1917
 Subjects
Subject: Florida Entomological Society
Entomology -- Periodicals
Insects -- Florida
Insects -- Florida -- Periodicals
Insects -- Periodicals
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General Note: Eigenfactor: Florida Entomologist: http://www.bioone.org/doi/full/10.1653/024.092.0401
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Volume ID: VID00309
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Z5he

Florida Entomologist
Official Organ of the Florida Entomological Society

Vol. XII SUMMER NUMBER No. 2
JUNE, 1928

TELENOMOUS MEGACEPHALUS ASHM., AN EGG PARASITE
OF THE GREEN PUMPKIN BUG, NEZARA VIRIDULA LINN.,
IN FLORIDA
RALPH L. MILLER*
During the years 1926 and 1927 the writer found that the eggs
of the common Pentatomidae, at Lake Alfred, Florida, were be-
ing attacked by an egg parasite, Telenomous megacephalus Ashm.
The species, Nezara viridula Linn. and Euschistus servus Say,
were quite common in citrus groves in Polk County and occa-
sionally did severe damage to trees and ripening fruit. The in-
sects feed on the leguminous cover crops until they are cut or
mature, then attack the fruit on the trees. During the autumn
of 1926 the insects were especially abundant and troublesome
and it was at this time that eggs were found very abundantly
parasitized. The writer is indebted to Dr. A. B. Gahan for the
identification of the parasite as well as for his assistance in se-
curing records of its occurrence. Dr. Gahan states, "Apparently
the only reference to Telenomous megacephalus Ashm. in litera-
ture is the original description (Jour. Linn. Soc. Lond. Zoology
Vol. 25, 1894, p. 208). This species was described from the
Island of St. Vincent but is a very common parasite in the eggs
of Nezara viridula in Florida as well as some of the West Indian
Islands. I do not know what the host was in your rearing but in
all probability the species is not confined to the above named
hemipteron as a host."
Historical.-In a paper in 1920 Dr. C. J. Drake (Quar. Bull.
State Plant Board of Florida Vol. IV No. 3 pp. 41 to 93) gives a
very complete record of the life history and natural enemies of
Nezara viridula and in it reports that an occasional egg parasite
was found but not enough material was available for complete
*Contribution from the Department of Entomology, Florida Agricul-
tural Experiment Station.











THE FLORIDA ENTOMOLOGIST


identification. The parasites he secured were placed by Mr. A.
B. Gahan in the genus Ooencyrtus, family Encyrtidae. Another
group which were all males belonged to the Chalcidoid, subfam-
ily Eupelminae.
Collection of Eggs and Parasites.-Eggs of the Pentatomidae
are usually deposited in large clusters on stems and leaves of
growing plants. In this case Crotalaria striata and beggar weed
(Desmodium purpureum) were the two plants most commonly
observed and collections from these were frequently made. Since
these plants were quite tall it was very easy to crawl along on
the ground in the patch and find the clusters of eggs on the
underside of the leaves especially when the sun was shining and
caused the eggs to form a dark spot on the leaf. All the masses
of hatched and unhatched eggs and egg shells were collected and
those that were hatched were recorded while those unhatched
were reared out in cotton-stoppered test tubes in the insectary.
As Dr. Drake explains, it is quite easy to tell the difference
between an egg shell from which a nymph has hatched and one
from which an adult parasite has emerged. The shell from which
a bug nymph has hatched has a round hole and shows the black,
three pointed egg burster very clearly, while a parasitized egg
shell is gray in color and has a small, irregular hole on one side
of the top surface.
The table on opposite page is a record of the egg masses of
Nezara viridula collected.
The eggs of three species of Pentatomidae were found to be
parasitized, Nezara viridula, Euschistus servus Say. and Euthy-
rynchus floridanus Linn. The first is by far the most common
but the others are occasionally attacked. The first two, Nezara
viridula and Euschistus servus Say., are plant feeding forms
but Euthyrynchus floridanus Linn. is entirely predaceous. Eggs
of these three species were identified in the field by the general
shape and number of spines present on the circle around their
tops.
Life History and Habits of the Parasite.-During the month of
November, 1927, several egg masses of the three Pentatomidae
were deposited in captivity. One of those from Euthyrynchus
floridanus was chosen immediately after being deposited and
was subjected to an adult egg parasite. The tiny, black female
wasp walked about over the mass, vibrated her antennae very
actively, touching the tops of the eggs as she passed. After about













SUMMER NUMBER


No.


Egg in
Mass


Date
Collected
10/15/26
10/15/26
11/16/26
11/16/26
11/16/26
11/16/26
11/16/26
11/16/26
11/16/26
11/16/26
11/16/26
11/16/26
11/16/26
11/16/26
11/16/26
11/16/26
11/16/26
11/16/26
11/20/26
11/23/26
11/23/26
11/23/26
11/23/26
11/23/26
12/8/26
12/8/26
12/8/26
12/8/26
12/8/26
3/15/27
3/15/27
3/25/27
3/25/27
4/20/27
5/15/27


Total -) 2711 1


No. of Eggs
Hatched
0
27
94
22
0
0
0
0
60
0
0
0
97
0
0
0
0
18
24
0
0
0
8
0
0
0
0
0
0
25
15
0
.28
29
0
447 (16.4%)


No. of Parasites hEt
ENme of e hatched and
Emerged nparasitized
50 7
52 0
0 1
92 0
45 0
103 0
140 0
111 0
29 0
81 0
70 0
126 0
0 0
2 75
16 0
90 0
31 97
4 75
0 0
111 0
78 0
91 0
20 0
96 0
101 0
87 0
88 0
43 0
8 112
0 1
26 0
39 0
0 1
22 0
43 0
1895 (70.0%)) 369(13.6%)


two minutes the parasite was found near the edge of the egg
mass pushing her abdomen down over the edge of an egg. The
tip of her ovipositor was now brought to touch the side of the
egg and then by means of a quick jab, the tip of the ovipositor
was thrust into the side of the egg about 1/3 the way down from
the top. The wasp now remained very quiet with the antennae
folded down on the head very similar in appearance to a man
holding his hands over his eyes. The process of depositing the
egg required from two to four minutes and after the first egg
had been deposited the parasite moved on to the next and re-
peated the process. This continued until the entire mass of eggs
had been parasitized.
The attack on the eggs was begun at 3 P. M., Nov. 18 and on
December 12 at 8 A. M. the first adult parasite appeared from


I











THE FLORIDA ENTOMOLOGIST


the mass. A tiny irregular hole near one side of the top of the
egg was formed and from this came the parasite. By noon on
the same day all the parasites had emerged from the egg mass.
The entire life history of the parasite consumed 23 days.
Immediately after emergence the parasites were quite active,
mating began in a very short time and the process of copulation
occupied only a few seconds. The life of the adults was quite
short in captivity and they were not observed to feed. In test
tubes they very rarely lived more than one. or two days.
Economic Importance.-It is very evident that a parasite that
is so active and destroys as many eggs of the Pentatomidae as
Telenomous megacephalus is very beneficial and should aid very
greatly in the control of these insects. As is the case with every
parasitic insect, if too thorough a control is effected the para-
site itself is headed toward extinction because of lack of food
material. For this reason one can expect that the peaks of
abundance of the Pentatomidae and its egg parasite in this sec-
tion will occur in cycles with the parasites always a little in
the rear. Even though this is the case the peaks of abundance of
the destructive bugs will not reach the height they would if the
parasite were not present.


NOTES ON THE CYPRESS SPHINX (Isoparce cupressi)
By MARSTON BATES
Sphinx cupressi Boisduval, Spec. Gen. Lep. Het. i. p. 102, n. 41, t. 2, f. 3,
4, 5 (1879).
Edwards, Can. Ent., XIX, p. 146 (1887).
Palm, Journ. N. Y. Ent. Soc. I, pl. I, f. 6, p. 20 (1893).
Isoparce cupressi Rothschild and Jordan, Rev. Sphingidae, p. 110 (1903).
Holland, Moth Book, p. 48, fig. 23 (1903).
Grossbeck, Bull. Am. Mus. Nat. Hist., XXXVII, p. 38.
Dukes, Bull. Brook. Ent. Soc., XVII, no. 4 (1922).
Larva: Head rounded, green, with two elliptical black lines
converging dorsally; around these lines is a yellowish area, bor-
dered laterally by a pair of lighter lines. First thoracic segment
green, with four small longitudinal yellowish-white lines on the
dorsum, between which is a variable amount of shining black;
laterally with a diagonal yellowish-white line extending in the
opposite direction to the white patches on the other segments.
Rest of body green, reddish brown dorsally, with the usual ob-
lique lateral stripes interrupted between the segments to form
two rows of white patches, converging posteriorly. Thoracic legs










SUMMER NUMBER


light brown; stigmata brown, surrounded by a spot of reddish-
brown, under which there is a small yellowish-white spot. Body
covered irregularly with small white dots: greenish on the
sides and reddish dorsally. Prolegs light brown, as thoracic legs,
with a dark lateral spot. Horn reddish-brown, stiff, finely granu-
lose, directed posteriorly.
Length: 65 mm.; width of head, 5 mm.; length of caudal horn,
8 mm.
Hab.: About a dozen specimens, collected by Mr. T. H. Hub-
bell and Mr. F. W. Walker in a cypress swamp near Waldo,
Florida, in September, 1924. The larvae were found feeding at
night on the young trees. The moths emerged as follows: female,
Feb. 16; female, Mar. 9; female, Mar. 14; male, Apr. 11; male,
May 6.
Pupa: Color chestnut brown, body surface smooth, polished
ventrad. Head and dorsum of thorax finely striate. Dorsal surface
of abdomen punctate, sculpturing shallow or lacking ventrad.
Maxillae oppressed closely to body; extending almost as far cau-
dad as the wings. Antennae and mesothoracic legs extending the
same distance caudad. Cremaster triangular, heavily sculptured
with irregular ridges. Two well defined spiracular furrows pres-
ent: a deep anterior one and a shallow posterior one, on seg-
ments 5-7.
The pupa runs down to the genus Ceratomia on Miss Mosher's
key (Ann. Ent. Soc. Am., XI, p. 408). Lacking specimens of
Ceratomia, I can find no good characters to separate the two. Mr.
Dukes (1. c.) has found the pupae in crevices in the trunk of the
cypress trees "just above the water-line."
Distribution in Florida: I have found this moth, so rare in
collections, at Waldo, Orlando, Gainesville and Fort Lauderdale.
It has also been recorded from Kissimmee and Enterprise (Ed-
wards, 1. c.) and from Enterprise by Grossbeck, 1. c. It is prob-
ably state-wide in its distribution, occurring everywhere with
the bald cypress (Taxodium distichum). In the small number of
larvae that have come into my hands, I have found three para-
sites, a Chalcid, a Sarcophagid and an Ichneumon. The Chalcid
is a new species, and the other two have not been determined.
These parasites may account for its rarity.











Uhe
FLORIDA ENTOMOLOGIST
Official Organ of The Florida Entomological Society, Gainesville,
Florida.

J. R. WATSON-...............---.. --..............--- ................ ...........--- Editor
WILMON NEWELL........-....--...-........-..........-..........---Associte Editor
A. N. TISSOT ...--...--................-- .........................- Business Manager
Issued once every three months. Free to all members of the
Society.
Subscription price to non-members is $1.00 per year in ad-
vance; 35 cents per copy.

THE SCARABAEIDAE OF FLORIDA
By W. S. BLATCHLEY
Dunedin, Florida
(Continued from page 14)
31. (13127). A. ruricola Melsh.
Length 4.5-5 mm. Piceous-black, strongly shining, sides and tip of ely-
tra usually paler; front of head in this species, 32 and 33, tuberculate;
mesosternum not carinate between the coxae; joint 1 of hind tarsi but
slightly longer than 2 and 3 united.
Fort Capron (Sz.); Lake Worth (Ham.); Jacksonville, Nov.
5 (Dav.).
*32. (13134). A. lividus (Oliv.).
Length 4.5-5 mm. Dull yellow, shining; hind portion of head, disk of
thorax and sutural line of elytra brownish; mesosternum carinate; thorax
in this and No. 33 without a basal marginal line.
Schwarz in 1878 recorded lividus only from Ft. Capron and
as "very rare." It is an introduced species and is now the most
common Aphodius in the State, occurring everywhere that cattle
are found. The records at hand extend from Pensacola and Pab-
lo Beach to Chokoloskee and Royal Palm Park and cover all sea-
sons of the year.
*33. (13135). A. vestiarius Horn, 1870, 121.
Length 4-4.2 mm. Piceous-brown, shining; margins of head and thorax
and suture of elytra reddish-brown; mesosternum carinate; joint 1 of hind
tarsi barely as long as next two.
Originally described from St. Augustine. Haw Creek (Sz.
Ms.); Lake Worth (Sloss.); Enterprise (Dietz); Pablo Beach,
La Belle and Chokoloskee (Day.). Sanford, Dunedin, St. Peters-
burg, Sarasota, Ft. Myers and R. P. Park (BI.). Common in cow
dung throughout the year.











SUMMER NUMBER


34. (13147). A. lutulentus Hald.
Length 5.5-7 mm. Black, subopaque; angles of clypeal notch prominent,
subdentate. Elytral intervals flat, strigose-punctate; mesosternum not
carinate. Male with spur of front tibiae equalling the first four tarsal
joints. Apex of hind tibiae in this and all remaining species of the genus
fimbriate with unequal spinules.
Tallahassee (Sz. Ms.). No other Florida record.
35. (13149). A. lentus Horn.
Length 3.5-4 mm. Reddish-brown, feebly shining; head and thorax
slightly darker; mesosternum carinate between the coxae.
Pensacola, Dec. 14, (Sz. Ms. and Schf.).
*36. (13159). A. rubeolus Beauv.
Length 3.5-5 mm. Uniform pale reddish-brown, shining; thorax with-
out basal marginal line; mesosternum carinate. Fore femora in this and
the next two species punctate in front; first joint of hind tarsi not as
long as the next three.
"Common" (Sz.); Enterprise (Dietz); LaGrange, Sept. 10
(Dav.); St. Augustine and Centerville (Sz. Ms). Dunedin, March
7, at carrion; June 10, at light (Bl.).
*37. (13161). A. campestris Blatch., 1912, 330.
Length 3-3.2 mm. Head and thorax pale chestnut-brown; elytra pale
brownish-yellow, their intervals smooth; clypeus smooth; thorax with basal
marginal line; first joint of hind tarsi as long as the next three.
Described from Sarasota. Frequent at Dunedin, Dec. 14-April
23, in cow dung and at light. LaGrange, Sept. 11, "in cabbage
palm" (Dav.).
38. (13162). A. stercorosus Melsh.
Length 3.5-4.5 mm. Brownish-yellow, shining, head and thorax slightly
darker; elytra often clouded with fuscous; clypeus distinctly punctate;
thorax without basal line; first joint of hind tarsi longer than the next
three.
Suwanee Springs (Sloss.); Enterprise (Dietz);. Lake Worth
(Ham.).
39. (13163). A. troglodytes Hubbard, 1894, 312.
Length 3-3.8 mm. Honey-yellow or reddish yellow; sides of thorax finely
punctate, without coarse punctures intermixed; elytral intervals finely
punctate; first joint of hind tarsi longer than the next three.
Described from Crescent City, where it occurred in numbers
in the burrows of the gopher tortoise. Enterprise (C. & L.) ; Lake
Mary (Fall); Lake Worth (Ham.). Known only from gopher bur-
rows in Florida.
*40. (13164). A. concavus Say.
Length 8-8.5 mm. Pale reddish-brown, shining; cheeks rather promi-
nent; disk of thorax of male smooth at middle, finely and irregularly punc-











THE FLORIDA ENTOMOLOGIST


tured on sides; mesosternum not carinate in this and the next three spe-
cies; fore tibiae smooth in front.
Crescent City, (Sz. Ms.); Gainesville, Jan. 6, under leaves
(Agr. Coll.); Lake Lucy and St. Petersburg (Schf.); Sanford,
June 13 (B1.). The largest species in the State.
41. (13176). A. parcus Horn, 1887, 42.
Length 3 mm. Pale yellowish-testaceous, shining; clypeus not denticu-
late at sides of notch; thorax with distinct but fine basal line and margins
conspicuously fimbriate.
Types from eastern Florida. No definite station records.
42. (13177). A. aegrotus Horn.
Length 3-4.5 mm. Pale chestnut-brown, shining, elytra sometimes paler;
form robust; cheeks narrowed from eye forwards; thorax wholly smooth
and with distinct basal line.
"Occurs in Florida and North Carolina" (Horn, 1887, 43). No
other record.
*43. (13180). A. bicolor Say.
Length 4.5-6 mm. Head and thorax black, elytra piceous-black, the alter-
nate intervals often with small faint reddish spots; under surface and
legs pale brownish-yellow; clypeus widely and shallowly emarginate, angu-
late each side of notch; head and thorax evenly, finely and closely punc-
tate.
Dunedin, March 18 (Bl. 1919, 31). The only record for the
State.
Genus X. EUPARIA Serville
Robust subcylindrical pubescent species having the eyes hid-
den in repose; cheeks large, subacute, separated from the
clypeus by a deep notch; thorax short, broader at base than
elytra, sides flattened and ciliate; scutellum narrow, acute;
middle and hind tibiae curved, the latter with outer apical angle
prolonged as in Ataenius.
*44. (13211). E. castanea Serv.
Length 5 mm. Dark chestnut-brown, shining; thorax one-half wider than
long, rather sparsely punctate, each puncture, as well as those of elytral
intervals, with a short, erect yellowish hair.
"Fernandina, one specimen among ants" (Sz.). Sanford, Jan.
16, 1911, three taken from the nest of a small brown ant, be-
neath the bark of a rotten oak stump (Bl.). These are the only
records for the State. A myrmecophilous species known elsewhere
only from Alabama and Louisiana.
Genus XI. ATIENIUS Harold
A large genus of small subcylindrical or oblong Aphodiinae,
having the mandibles and usually the eyes concealed; sides of











SUMMER NUMBER


thorax fimbriate; intervals of elytra usually distinctly convex
or carinate, their sides often crenate; pygidium partly exposed;
mesosternum usually carinate; hind tibiae straight, their outer
apical angle prolonged, often spiniform, and in some species with
a small "accessory spinule" on the under side near the spurs;
first joint of front tarsi always longer than second.
45. (13212). A. insculptus Horn, 1887, 70.
Length 4-4.5 mm. Black, subopaque; clypeus in this and the next two
species broadly, feebly emarginate with an acute denticle each side of notch;
hind femora in this and No. 46 with a deep, entire marginal line; first joint
of hind tarsi nearly twice the length of the long spur. Hind tibiae in this
and species 46-53, inclusive, without accessory spinule.
Described from "Florida." Tampa (Sz. Ms.; Fall). No other
records.
*46. (13213). A. cylindrus Horn, 1871, 289.
Length 3.5-4 mm. Piceous or black, moderately shining, legs reddish-
brown; thorax densely punctured throughout; elytral intervals subacutely
carinate; first joint of hind tarsi in this and No. 47 not longer than the
long spur.
Types in part from "Florida." Many records from the north-
ern part of the State south to Ft. Myers and Palmdale. Occurs
in winter beneath cover along the margins of ponds and in cow
dung.
47. (13216). A. abditus (Hald.)
Length 3.5-4 mm. Piceous, shining, legs pale reddish-brown; thorax
densely punctured throughout; elytral striae coarsely crenately punctate,
intervals nearly flat; hind femore without marginal line.
"Fort Capron, Haulover and Enterprise, not rare" (Sz.). No
other Florida records.
*48. (13220). A. imbricatus (Melsh.).
Length 3.5-4 mm. Piceous, opaque, usually covered with a brownish-
gray coating; clypeus, as in all remaining species, feebly emarginate, the
angles each side of notch broadly rounded, never dentate; thorax in this
and No. 49 without basal marginal line; elytral intervals feebly convex,
their punctures each bearing a small scale-like yellowish hair.
"Common" (Sz.). This statement is not borne out by the few
definite station records as follows: Gainesville, abundant at
lights, June 7 (Doz.). St. Petersburg (Fall). Dunedin, March
20-April 7, scarce (Bl.).
*49. (13221). A. alternatus (Melsh.).
Length 4-4.5 mm. Piceous-black, opaque; alternate elytral intervals 1-3-
5-7 acutely elevated, cariniform. Otherwise resembles imbricatus but aver-
aging larger.












THE FLORIDA ENTOMOLOGIST


Frequent in northern portion of State, south to Sarasota, Okee-
chobee and Ft. Myers. Common at Dunedin, February-April, be-
neath weed debris near water; at light, June 5.
50. (- ). Asosolitarius Blatch., Can. Ent., LX, 1928, 69.
Length 5 mm. Dark chestnut-brown, antennae slightly paler; thorax
with basal marginal line; elytral striae deep, intervals convex, strongly
crenately punctate on their inner side. Female with occiput finely, closely
punctate; clypeus finely rugose, impunctate; front tibiae tridentate, ex-
ternally crenate above the teeth; ventrals coarsely, not densely punctate,
their front margin finely crenate.
Royal Palm Park, April 2, 1927; one female sifted from weed
debris on margin of ditch.
51. (13224). A. wenzeli Horn, 1887, 77.
Length 4.5 mm. Piceous-black, shining; head in this and the next two
species simply punctate, not rugulose; elytral intervals very flat, minutely
alutaceous, their inner sides deeply crenate; abdomen nearly smooth at
middle.
Described from New Jersey and Florida. Haulover (Sz. Ms.).
52. (13225). A. ovatulus Horn.
Length 3.5 mm. Piceous-black, shining; form rather robust; elytra con-
jointly oblong-oval, theirbase slightly emarginate, intervals convex; abdo-
men coarsely punctured; hind femora with entire marginal line.
Enterprise, very rare (Sz.); St. Augustine (Ham.); Lakeland
and Punta Gorda, November (Day.).
*53. (13226). A. gracilis (Melsh.).
Length 3-4 mm. Piceous-black, feebly shining; form slender; elytra
elongate, sides parallel, intervals narrow, convex, carina-like; hind femora
without marginal line.
Common throughout the State; many records. Occurs in win-
ter beneath boards and weed debris near water; also in dry cow
dung.
*54. (13231). A. strigatus (Say).
Length 4.5-5 mm. Piceous-black, shining; clypeus finely punctured
without trace of rugae, occiput with coarse punctures; elytra deeply stri-
ate, striae punctured; intervals convex, crenate both sides; hind femora
in this and No. 55 with a deep marginal groove; hind tibiae in this and all
following species with accessory spinule.
Jacksonville (C. & L.); Biscayne Bay and Orange Co. (Sz.
Ms.); Lake Worth (Ham.); Everglade, May (Dav.); Dunedin,
April 5, in cow dung (Bl.).
*55. (13232). A. stercorator (Fabr.).
Length 5-5 mm. Very similar to strigatus, but with sides of clypeus
coarsely transversely rugose; coarse punctures of thorax confined to basal
third.
"Florida" (Horn); Enterprise (Sz. Ms.); Punta Gorda, Nov.











SUMMER NUMBER


14 (Day.); Pensacola and Paradise Key (Fall); Dunedin, June
20-July 10, at porch light (BI.).
*56. (13233). A. cognatus (Lec.).
Length 4.5-5 mm. Black, shining; clypeus more or less wrinkled and
coarsely punctured; thorax with scattered coarse punctures mixed with
very fine ones over entire surface; elytral intervals coarsely crenate on
inner side; hind femora without marginal line.
Occurs throughout the State. At hand from seven different
stations and recorded from Jacksonville to Everglade and Royal
Palm Park. Found by hundreds at the Park beneath piles of de-
caying Chara and weed debris along ditches.

Genus XII. PSAMMOBIUS Heer
Small oblong species with the general faces of Ataenius but
having the maxilla corneous and ending in stout curved spines or
hooks; front of head coarsely granulated; thorax with margins
fimbriate with fine slender hairs, its sides not grooved but with
a depression near front angles; first joint of hind tarsi elongate-
triangular, last very short.
*57. (13240). P. cruentus Harold.
Length 3.5 mm. Piceous, shining; clypeus with a small reflexed tooth
each side of the broad emargination; thorax with depression near front
angles, smooth on sides and near apex, elsewhere sparsely, coarsely punc-
tate.
Capron, New Smryna, Cedar Keys and Tampa (Sz.); Pensa-
cola and Dunedin (Fall); Lake Okeechobee (Bl.). Occurs be-
neath cover on sand beaches. The P. bidens Horn is a synonym.
58. (13241). P. schwarzi Linell, 1895, 721.
Length. 3.6 mm. Reddish-brown, shining; clypeus without teeth; thorax
with 8-15 coarse punctures on sides and depression near front angle.
Described from Jacksonville. Orlando (Fall).

Genus XIII. RHYSSEMUS Mulsant
Small oblong Aphodiinae having the maxillae membranous;
head granulate; thorax with transverse grooves entire and with
scale-like clavate marginal hairs; hind tarsi with cylindrical
joints, the basal one elongate.
59. (13251). R. scaber Hald.
Length 3.5-4 mm. Piceous, opaque, antennae pale; clypeus rounded each
side of notch; thorax densely granulate and with transverse rows of larger,
more shining tubercles.
Lake Mary (Fall). "Occurs at the margins of streams from
the middle states to Texas" (Horn). The Florida record of











THE FLORIDA ENTOMOLOGIST


Rhyssemus californicus Horn (No. 13252 of the Leng Catalogue)
probably refers to this species, as no definite station record can
be found.
Genus XIV. PLEUROPHORUS Mulsant
Very small, subcylindrical species, allied to Psammobius but
thorax with margins not fimbriate, the disk with one or two deep
grooves each side and punctures very coarse and scattered.
*60. (13256). P. parvulus Chev.
Length 2-2.5 mm. Reddish-brown, head and thorax in part darker; cly-
peus densely granulate, without tooth each side of notch; thorax roughly
sculptured, a deep groove each side at apical third, punctures very coarse.
Dunedin, March 19, one specimen swept from low herbage
near bay front (B1.). St. Petersburg, April 26 (Fall). This is
the P. nanus of Horn. It is the smallest known species of North
American Scarabseidae.
Subfamily OCHODZEINAE
Oval, convex brown species thickly clothed above with short
erect hairs; antennae 10-jointed; clypeus not dilated, not cover-
ing mandibles and labrum; elytra striate; front coxae promi-
nent; ventral segments six, not connate.
Genus XV. OCHODWEUS Serville
This, the only genus of the subfamily, is sufficiently charac-
terized above.
61. (13273). 0. frontalis Lec.
Length 5-6.5 mm. Pale reddish-brown, thickly pubescent with coarse
yellow hairs. Clypeus hemi-hexagonal with an acute tubercle near the
frontal suture; all femora of male with tooth near tip, hind ones with
another near apical third and front ones with tooth at middle.
"Occurs from Texas to Florida" (Horn); Enterprise (Sz.);
Miami, Sept. 22 (Day.).
Subfamily GEOTRUPINAE
Oval or rounded convex beetles of variable size having the
antennae 11-jointed, club 3-jointed; elytra usually strongly stri-
ate, covering the pygidium; front coxae prominent, middle ones
oblique, usually contiguous; ventral segments six. They either
live in excrement or wander about in search of other food.
IEY TO TRIBES OF FLORIDA GEOTRUPINAE
a. Club of antennae lenticular, i. e., large, round, convex on both sides;
color brown or piceous. Genera XVI-XIX. Tribe BOLBOCERINI.
aa. Club of antennae smaller, lamellate, i. e., formed of leaf-like plates;
color black, bluish or metallic green. Genus XX. Tribe GEOTRUPINI.











SUMMER NUMBER


Genus XVI. BOLBOCERAS Kirby

Large or medium sized species having the eyes only partially
divided by a process from the side of head. Includes Bradycinetus
Horn.
*62. (13282). B. ferrugineus (Beauv.).'
Length 17-21 mm. Dark to pale reddish-brown, feebly shining; sides
of thorax broadly rounded from base to apex, not serrate. Male with cly-
peus flat, truncate in front; thorax with a transverse premedian ridge end-
ing each side in an obtuse tubercle; clypeus of female with a curved trans-
verse ridge and behind this a median obtuse tubercle.
Enterprise (Sz. & Dietz); Crescent City and St. Augustine
(Sz. Ms.); LaGrange, Sept. 11 (Day.); Gainesville, rather
scarce at light, June-Aug. (Doz.). Dunedin, June 4, one at light;
March 28, one ploughed up from sandy soil near border of pond.
Apparently scarce and not definitely recorded except from Flor-
ida.
Genus XVII. ODONTZEUS Klug

Rather small species having the eyes wholly'divided by a flat-
tened process from side of head; process between the middle
coxae without a vertical, tooth-like elevation.
63. (13285). 0. corniger (Melsh.).
Length 9.5-10 mm. Reddish-brown. Head of male with a long, rather
stout fixed horn, the thorax, as in the next, with two wide, deep pits with
a stout curved spine in front of each.
Enterprise (Dietz.) ; Slosson collection (Leng Ms.).
*64. (13286). 0. filicornis (Say.).
Length 6-8-5 mm. Pale to dark reddish-brown. Male with horn more
slender and movable; thorax with a sharp ridge each side of the pits. Fe-
male without horns, or pits on thorax, the latter coarsely irregularly punc-
tate.
SEnterprise (Sz.); Tampa (Sz. Ms.); Dunedin, two male's,
March 15-25, at porch light (B1.).

Genus XVIII. BOLBOCEROSOMA Schaffer

Medium sized species allied to Bolboceras but having the eyes
completely divided; middle coxae narrowly separated and with
a tooth-like elevation arising from the process between them.
Male with a short horn at middle of clypeus; female with horn
reduced to a transverse ridge.
*65. (13288). B. farctum (Fabr.).
Length 8-12 mm. Brick-red, the head, narrow basal cross-bar on thorax
and suture, side margins and apical third of elytra, black. Elytra in typical











THE FLORIDA ENTOMOLOGIST


form with second and fifth striae absent; in var. tumefactum Beauv. with
seven entire striae.
Gainesville; one, July 30, flying over grass of wet prairie;
one, Aug. 3, beneath loose bark of pine (Doz.).
Genus XIX. EUCANTHUS Westwood
Small chestnut-brown species, having the eyes only partially
divided; middle coxae contiguous. Male with a short flattened
curved truncate or bifid horn on clypeus, a transverse ridge on
vertex and a similar ridge with a tubercle each side on thorax.
Female with clypeal horn of male replaced by a ridge and the
transverse ridge of vertex more prominent.
*66. (13289). E. lazarus (Fabr.).
Length 6-12 mm. Chestnut-brown, shining. Other characters as above
given.
Frequent at light, June-September, in northern part of State,
the records being: Haulover, Enterprise and Cedar Keys (Sz.) ;
St. Augustine (Ham.); Central City and Orange County (Sz.
Ms.) ; Ortega, Sept. 27 (Dav.) ; Gainesville, Sept 16, on golden-
rod; Lake City, March 12 (Ag. Coll.). In the south taken only
at St. Petersburg, Jan. 20, on wing; Dunedin, April 3 and July
7 at light (B1.). (To be continued)

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