Technical results from the Gipsy moth parasite laboratory

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Technical results from the Gipsy moth parasite laboratory
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Table of Contents
    Front Cover
        Page i
        Page ii
    Table of Contents
        Page iii
    List of Illustrations
        Page iv
    Descriptions of certain chalcidoid parasites
        Page 13
        Page 14
        Page 15
        Page 16
        Page 17
        Page 18
        Page 19
        Page 20
        Page 21
        Page 22
        Page 23
        Page 24
Full Text
taBRARY
STATE PLANT BOAR)
TECHNICAL SERIES, No. 19, PART II.
U. S. DEPARTMENT OF AGRICULTURE,
J3URE AT O ENTrO IO( 0 G-Y.
L. 0. HOWARD, Entomologist and Chief of Bureau.


TECHNICAL RESULTS FROM THE GIPSY MOTH
PARASITE LABORATORY.



II. DESCRIPTIONS OF CERTAIN CHALCIDOID PARASITES.



By J. C. CRAWFORD,
Assistant Curator, Division of Insects, U. S. National Museum.


ISSUED APRIL 30, 1910.

















WASHINGTON:
GOVERNMENT PRINTING OFFICE.
1910.























BUREA U OF ENTOMOLOGY.

L. 0. HOWARD, Entomologist and Chief of Bureau.
C. L. MARLATT, Assistant Entomologist and Acting Chief in Absence of Chief.
R. S. CLIFON, Executive Assistant.
CHAS. J. GILLISS, Chief Clerk. F. TI. CHIITTENDEN, in charge of truck crop and stored product insect investigations.
A. D. HOPKINS, in charge of forest insect investigations.
W. D. HUNTER, in charge of southern field crop insect investigations.
F. M. WEBSTER, in charge of cereal and forage insect inestigations.
A. L. QUAINTANCE, in charge of deciduous fruit insect investigations.
E. F. PHILLIPS, in charge of bee culture.
D. M. ROGERS, in charge of preventing spread of moths, field work.
ROLLA P. CURRIE, in charge of editorial work.
MABEL COLCORD, librarian.
PREVENTING SPREAD OF MOTHS.

PARASITE LABORATORY.

W. F. FISKE, in charge; A. F. BURGESS, 11. S. SMITH, 11. L. VIERECK, W. R. THOMPSON,
C. V. (COLLINS, T. L. PATTERSON, R. WOOLDRIDGE, P. 11. TIMBERLAKE,
assistants.
FIELD WORK.

D. M. ROGERS, in charge; 11. B. DALTON, A. L. CONNOLLY, H. W. VINTON,
). G. MURPHY, I. L. BAILEY, H. L. MCINTYRE, assistants.
II

























CONTENTS.

Page.
In trod u ction 1------------------------------------------------------------ 13
Family Chalcididg ------------------------------------------------------- 13
Subfamily Chalcidine ------------------------------------------------- 13
Tribe Chalcidini ------------------------------------------------- 13
Genus Chalcis ------------------------------------------------ 13
Family Perilampide ------------------------------------------------------, 20
Genus Perilampus --------------------------------------------- 20
Family Pteromalido ----------------------------------------------------- 91
Subfamily Pteromalinae ----------------------------------------------- 21
Tribe Pteromalini ------------------------------------------------- 21
Genus Hypopteromalus --------------------------------------- 21
Family Eulophido ------------------------------------------------------- 22
Subfamily Entedoninv ----------------------------------------------- 22
Tribe Entedomni ------------------------------------------------- 22
Genus Pleurotropis -------------------------------------------- 22
Subfamily Eulophin -------------------------------------------------- 24
Tribe Eulophini ------------------------------------------------- 24
Genus Dimmockia ------------------------------------------- 24
'1[



























I LLUSTRATIONS.


Page.
FIG. 8. ('halcis oratta, female: Head, showing carina at front of malar space.... 15
9. Chalcis o rata, female: Ventral view of hind coxa, showing tubercle.... 15 10. Chalcis orata, female: Hind femur and tibia, showing markings ........ 15 11. Chalcis robusta, female: Iind femur and tibia, showing markings...... 15 12. Chalcis incerta, female: Hind femur and tibia, showing markings...... 16 13. Chalcis fiskci, female: Hind femur and tibia, showing markings ........ 16 14. Chalcis fiskei, female: Head, showing carina at front of malar space.... 16 15. Chalcis obscurata, female: Hind femur and tibia, showing markings.... 17 16. Chalcis obscurata, female: Head, showing carina at front of malar space. 17 17. C(halcis flavipes, female: Hind femur and tibia, showing markings..... 18 18. Chal cis jiaripes, female: Head, showing carina at front of malar space. 18 19. Chalcis mininuta, female: Hind femur and tibia, showing markings...... 18
20. Chalcis nminuta, female: IHind femur, inner side, showing tubercle near
base............................................................ 18
21. Chalcis minuta, female: Head, showing carina at front of malar space. 18 22. ('halcis'paraplcsia, female: Hind femur and tibia, showing markings... 19 23. ('halcis paraplesia, female: Head, showing carina at front of malar space. 19
IV







U. S. D. A., B. E. Tech. Ser. 19, Pt. II. Tssued April 30, 1910.

TECHNICAL RESULTS FROM THE GIPSY MOTH PARASITE LABORATORY.


II. Descriptions of Certain Chalcidoid Parasites.
By J. CRAWFORD,
Assistant Curator, Division of Insects, U. S. National Muscum.
INTRODUCTION.
The new species described in this paper came from material imported from Japan and Europe for the purpose of rearing parasites of the gipsy moth and the brown-tail moth. The work of rearing these parasites is conducted at the Gipsy Moth Parasite Laboratory, now situated at Melrose Highlands, Mass.
In the study of these parasites a Zeiss binocular microscope has been used with magnifications of from 24 to 35. In cases where the description states that the series includes more than one specimen of each sex the description is drawn from one specimen of each sex, and any variations in the other specimens, which are designated as paratypes, are cited.
In considering the genus Chalcis it has been deemed desirable to display in a synoptic table not only all of the species of this genus which have been introduced purposely as parasites of the gipsy moth or the brown-tail moth or accidentally included in shipments of parasite material, but also all of the species of the genus known to occur in the United States. In the same way it has been deemed desirable to publish a table separating the common American form from the two species of the genus Hypopteromalus accidentally included in shipments of parasite material, and also to separate in a synoptic table the different Japanese species of the genus Pleurotropis which have three funicle joints. As pointed out, P. atamiensis belongs probably to an undescribed genus.
Family CHALCIDIDIE Walker.
Subfamily CMILCIDIN2E Howard.
Tribe CHALCIDINI Ashmead.
Genus CHALCIS Fabricius.
Since some of the species of Chalcis from Europe and Japan are being introduced into this country, it appears best to give a table of all of the species of the genus known to occur in the United States and to include in this table the exotic species which are involved.
13







14 RESULTS FROM GIPSY MOTH PARASITE LABORATORY.

In the following table and descriptions of species the term "tubercle of hind coxx refers to a small projection on the ventral side of certain species (fig. 9). The tubercle of the hind femur is the small elevation on the inner side near base and on the lower margin of the femur (fig. 20).
In all of the figures showing the carina which separates the malar space from the face, the drawings aide made facing the left.

TABLE OF SPECIES OF THE GENUS CHALCIS.

1. Hind femora on outer side black or black and yellow ........................ 2
Hind femora on outer side red, or red and yellow, or red and black .......... 12 2. Carina at front of malar space not branched, running direct to eye ---------- 3
Carina at front of malar space branched or directed backward before reaching
eye .................................................................. 5
3. Hind femora closely punctured, tooth nearest base on lower margin of hind femora triangular. (America) .................................... ovata Say.
Hind femora almost impunctate, especially the inner side, tooth nearest base
of hind femora massive ------------------------------------------------ 4
4. Hind femora on outer side yellow at base and apex. (America).. robusta Cresson.
Hind femora yellow only at apex. (America) .................. incerta Cresson.
5. Scape in front with a yellow spot ......................................... 6
Scape in front entirely dark ................................. ............ 7
6. Hind femora mostly yellow. (America) ...................... tegularis Cresson.
Hind femora mostly black. (America) ................. S coloradensis Cresson.
7. Inner side of hind femora distinctly, closely punctured ..................... 8
Inner side of hind femora almost entirely impunctate ...................... 11
8. Posterior tibia behind mostly black ......................................... 9
Posterior tibia behind yellow except basally .............................. 10
9. Hind femora entirely black, hind tibiae black with a small yellow spot at apex. (America) ........................................ tarsata Dalla Torre.
Hind femora with a yellow spot at apex; hind tibia with a yellow annulus
near base. (Japan) ..................................... fiskei, new species.
10. Hind tibiae at base black; a small area beneath antenna smooth; pupal skin
light colored. (Japan) ..................................... obscurata Walker.
Hind tibiae at base yellow or reddish; no smooth area beneath each antenna;
pupal skin dark brown. (Europe) ........................... flavipes Panzer.
11. Wings hyaline; tooth of metathorax less prominent, the outline more obtuse,
the front edge directed backward. (Japan) .......... paraplesia, new species.
Wings dusky; tooth on metathorax more prominent, the outline more acute,
the front edge almost vertical. (Europe) ................... minuta Linneus.
12. Mesonotum red. (America) ............................... befragei Crawford.
Mesonotum black ......................................................... 13
13. Face with a distinct carina between antennal fossa and eyes, originating back
of anterior ocellus; antennal fossa carinate. (America)........ pedalis Cresson.
Face not so carinate ..................................................... 14
14. Antennal fossa very wide, separated from eyes by about length of first joint of
funicle ................................................................ 15
At naml fossa narrow; ,eparited from eyes by more than length of first joint
of funicle ............................................................. 16







DESCRIPTIONS OF CERTAIN CHIALCIDOID PARASITES. 15

15. Small; abdomen basally red; tooth nearest base of hind femora not larger than
rest; hind coxe of female not toothed. (America) ........ columbiana Howard.
Large; abdomen black; tooth basad on hind femora very large; hind coxa of
female toothed. (America) ............................. slossonu Crawford.
16. Scape in front with a yellow spot. (America)............. coloradensis Cresson.
Scape in front black...................................................... 17
17. Small, about 4mm, wings milky hyaline, lateral teeth on metathorax not prominent. (Europe)........................................ fonscolombei Dufour.
Larger, about 6mm, wings dusky, lateral teeth on metathorax prominent,
acute. (Japan)............................................. -----------------------------------------callipus Kirby.

CHALCIS OVATA Say.

(Figs. 8-10.)

Chalcis ovata Say, Keating's Narrat. Exped., ni, app., p. 326, 1824.

This native species is separated from all the exotic species discussed in this article by the fact that the carina at the front of the












FIG. 8.- Chalcis ovata, female FIG. 9.- Chalcis ovata, female: FIG. 10.- Chalcis ovata, female: Hind Head, showing carina at Ventral view of hind coxa, femur and tibia, showing markings. frontofmalarspace. (Orig- showing tubercle. (Orig- (Original.) inal.) inal.)

malar space runs direct to the eye; in the female the hind coxm are armed with a small tubercle; the inner side of the hind( femora is distinctly punctured, and without a tubercle on the lower margin near base; the hind tibie are either with or without a black annulus medially; the form with the annulus is illustrated.

CHALCIS ROBUSTA Cresson.

(Fig. 11.)

Chalcis robusta Cresson, Proc. Ent. Soc. Phila., Iv, p. 101, 1865.









FIG. 11.- Chalcis robusta, female: Hind femur and tibia, showing markings. (Original.)






16 RESULTS FROM GIPSY MOTH PARASITE LABORATORY.
CHALCIS INCERTA Cresson.
(Fig. 12.)
Chalcis incerta Cresson, Proc. Ent. Soc. Phila., Iv, p. 101, 1865.
Both of the Cuban species, Chalcis robusta and C. incerta, are to be found in southern Florida. The massive basal tooth of the FIG. 12.-Chalcis incerta, female: hind femora distinguishes them from the Hind femur and tibia, showing other species in the United States.
maring. Oriina.)other species mn the Umited States.
markings. (Original.)

CHALCIS COLORADENSIS Cresson.

Chalcis coloradensis Cresson, Trans. Amer. Ent. Soc., iv, p. 60, 1872.
In the male of this species the hind femora are black, except the apex, which is yellow; the female, however, has the femora red; the hind femora have on the lower edge near base an indistinct tubercle. I am unable to distinguish 0. tachin Howard from this species.
CHALCIS FISKEI, new species.
(Figs. 13-14.)
Female.-Length, about 6.5mm. Black, head and thorax strongly, umbilicately punctured, with long yellowish pubescence; face below insertion of antenna rugoso-punctate; antennal fossa extending to anterior ocellus; carina at front of malar space running backward to join the carina at the rear, making a
triangularly inclosed malar space; antennae black, pedicel short, transverse;
depressed apical margin of FIG. 13.-Chalcis fiskei, female: scutellum broad, slightly Hind femur and tibia, showing 'markings. (Original.)
emarginate medially; me- markings. (Original.)
tathorax, back of outer end of metathoracic spiraScle, with a toothlike elevation; tegule yellow; wings 2 dusky; postmarginal vein about twice as long as
F. 14. Chalci fskci the short stigmal; legs black; front and middle legs Fiu;. 14. Chalcis fiskri,..
female: Ilead,showing with the femora apically, the tibim at bases and carinaIat frontof malar apices, the tarsi, and the anterior tibite in front, space. (Original.) yellow; a small yellow spot at the apex of the

hind femora, and a small yellow spot at the base and one at the apex of the hind tibive on the outer side; the hind tarsi entirely yellow;






DESCRIPTIONS OF CERTAIN CHALCIDOID PARASITES. 17

hind femora onil the lower margin with a triangular tooth near base, the space between this tooth and the apex of the femur occupied by about a dozen teeth, those in the middle of the series the largest and almost as large as the basal tooth, the teeth in the series decreasing in size from the middle toward both ends; hind femora distinctly punctured on the inner side; first segment of abdomen smooth, having a spot on each side with setigerous punctures; second segment at sides and on base with large setigerous punctures, the dorsal apical part of the segment with small punctures; the following segments basally smooth, the apical margins with fine punctures mixed with large setigerous punctures, sixth segment entirely covered with large punctures.
Male.-Length, about 6.5mm. Similar to the female, but with more yellow on the legs, the front and middle tibim mostly yellow, the spots on the hind tibim larger and occasionally meeting, making a yellow stripe on the outer side; teeth along the lower margin of the femora smaller.
Habitat.-Japan.
Described from 12 specimens reared at the Gypsy Moth Parasite Laboratory from material received from Prof. Trevor Kincaid and Prof. S. I. Kuwana. This is a parasite of Tachinidw.
Type.-Cat. No. 12789, U. S. National Museum.

CHALCIS OBSCURATA Walker.

(Figs. 15-16.)
Chalcis obscurata Walker, Trans. Ent. Soc. London, f. 1874, p. 399.
In this species the hind coxm of the female have a small tubercle; the hind tibiae are yellow except the extreme base, which is black; the face immediately below the antennal fossa is smooth and polished, especially a spot below the insertion of each antenna;
the hind femora are distinctly FIG. 15.- Chalcis obscurata, female: punctured on the inner side Hind femur and tibia, showing
prtrmarkings. (Original.) and without a tubercle near
the base. This species and the following resemble
superficially the form of C. ovata which has the hind
FIG. 16i.- chai, tibia without the medial black annulus but the strucobscrata, fe- ture of the carina at the front of the malar space male: Head,
showing carina readily separates them. This Japanese species is a at front of malar parasite of Porthetria dispar and has been reared by space. (Original.) G. Ojima, Kumamoto, and S. I. Kuwana, Tokyo.






18 RESULTS FROM GIPSY MOTH PARASITE LABORATORY.

CHALCIS FLAVIPES Panzer.
(Figs. 17-18.)
Chalcis flavipes Panzer, Fauna Insect. German, vn, p. 78, 1801.

This European species closely resembles the above, having the
tubercle on the hind coxe of the female, and the
inner side of the hind femora punctured and
FIG. 17.- Chalcis flavipes, female: without the tubercle near /
Hind femur and tibia, showing base, but is separated by
markings. (Original.) the characters given in
the table. It, also, is parasitic on Porthetria dispar. FIG. 18.- Chalcis flavipes.
female: Head, showing
CHALCIS MINUTA Linnaeus. carina at front of malar
space. (Original.)
(Figs. 19-21.)
Vespa minuta Linnaeus, Syst. Nat., Ed. 12, I, p. 952, 1767.
In this European species the hind femora have a tubercle near base on the inner side below. The inner side of the hind femora is not distinctly punctured. In the female the hind coxe are without










FIG. 19.- Chalcis minuta, female: FIG. 20.- Chalcis minuta, female: FIG. 21.-Chalcis Hind femur and tibia, showing Hind femur, inner side, showing minuta, female: markings. (Original.) tubercle near base. (Original.) Head, showing
carina at front
of malar space.
(Original.)
a tubercle. This species and the following superficially resemble (C. ovata, but are distinguished by the form of the carina at the front of the malar space, as well as by having the inner side of the hind femorat impunctured and with a tubercle near base. It is a parasite of flies of the family Sarcophagide, which are scavengers on the dead pups pf the gipsy moth.






DESCRIPTIONS OF CERTAIN CHALCIDOID PARASITES. 19
CHALCIS PARAPLESIA, new species.

(Figs. 22-23.)
Female.-Length, about 5.5mm. I-lead and thorax coarsely,
umbilicately punctured, face below insertion of antennat rugosopunctate; the carina at front of the inalar space runs almost to eye, then obliquely backward and upward to join carina at rear; malar space shiny, weakly sculptured; depressed apical margin
of scutellum deeply emarginate; metathorax at sides with a small toothlike projection; tegulw yellow; wings hyaline; legs black, marked with yellow; all the tarsi, tips of all femora, bases and tips of front and middle tibiv, a line on front of anterior tibiT, and apical third of hind tibim and a spot near base, yellow; hind femora on inner side with FIG. 22.-Chalcis paraphrsia, fesmall, sparse, indistinct punctures; hind male: Hind femur andl tibia,
femora on inner side below with a distinct showing markings. (Original.)
tubercle near base; lower margin of hind femora with a sawlike tooth near base, followed by a series of about ten smaller teeth, these decreasing in size to apex of femora; abdomen smooth, second segment and following segments at sides with some large punctures and apically minutely punctured.
Male.-Length, 5mm. Similar to the female, but the tooth of the metathorax represented by a slightly raised carinate ridge.
Habitat.-Japan.
Described from 6 specimens reared at the Gipsy Moth Parasite Laboratory from material collected by Prof. Trevor Kincaid and Prof. S. I. Kuwana. This species is parasitic in the pupm ,I of Sarcophagidoe.
FIG. 23.- halcis parapesia, Type.-Cat. No. 12791, U. S. National Mufemale: Head, showing seum.
carina at front of malar This species is closely related to C. minuta space. (Original.) Linneus, but is distinguished by the hyaline
wings and the less prominent tooth on the metathorax, which has the front edge running backward instead of almost vertical, as in minuta. The male of minuta occasionally has almost hyaline wings and is then easily separated by the strong teeth of the metathorax, the teeth being about as prominent in the male.as in the female.






20 RESULTS FROM GIPSY MOTH PARASITE LABORATORY.
CHALCIS FONSCOLOMBEI Dufour.
Chalcisfonscolombei Dufour, Ann. Soc. Ent. France, x, p. 16, 1841.
This European parasite of Sarcophagide often has the basal half of the hind femora black; the hind tarsi are red at base and apex and black medially, the red part ornamented with a small yellow spot; the hind femora have a small tubercle on the inner side below near the base; the hind coxe of the female are without a tubercle.
CHALCIS CALLIPUS Kirby.
Chalcis callipus Kirby, Journ. Linn. Soc. London, Zool., xvii, p. 75, 1883.
In this species the hind coxe of the female are without a tubercle, the hind femora are very sparsely punctured on the inner side and have a tubercle near the base; the carina at the front of the malar space has, before reaching the eyes, a branch directed backward.
Of this species only one female has been seen, collected at Nishigahara, Tokyo, Japan, by Prof. S. I. Kuwana, with the record "bred from the pupa of a gipsy moth, July 12, 1908."

Family PERILAMPID2E Foerster.
Genus PERILAMPUS Latreille.
PERILAMPUS INIMICUS, new species.
Female.-Length, about 2mm. Deep violaceous, with purple reflections, the head, metathorax, and abdomen more bluish; face not carinate; face and vertex impunctate, with scattered pubescence on the vertex; scape of antenna blue or greenish, flagellum reddish brown, beneath more reddish; first joint of flagellum hardly longer than the pedicel; thorax umbilicately punctured, parapsidal areas along inner side, with a broad smooth area; punctures on disc of scutellum more separated, leaving a more or less distinct smooth line along center; wings hyaline; legs brown, hind legs in front purple; knees, anterior tibia in front, bases and tips of all tibia, and the tarsi entirely, light testaceous; apical margin of first abdominal segment straight.
Male.-Length, about 2mm. Similar to the female; apical twothirds of scape swollen and flattened in front, with a slight constriction between the normal base and the swollen part; legs with more light color at the bases and apices of tibim.
Habitat.-Japan.
Described from 6 specimens reared from cocoons of Glyptapanteles japoniens Ashmead at the Gipsy Moth Parasite Laboratory, from material received from Prof. Trevor Kincaid and Prof. S. I. Kuwana.
Type.-Cat. No. 12793, U. S. National Museum.






DESCRIPTIONS OF CERTAIN CHALCIDOID PARlASITES. 21

Family PTEROMALID.E Walker.
Subfamily P'TERZOMALINAC Ashniead.
Tribe PTEROIALINI Ashnnl.
Genus HYPOPTEROMALUS Ashmead.
Since the type species of this genus has a well-develope1 neck to the metathorax and a short but plainly visible petiole, it doess not well fit in the place in Doctor Ashmead's tables in which he has put it. The following table based on antennal characters and the color of the legs separates both sexes:
TABLE OF SPECIES OF THE GENUS HYPOPTEROMALUS.
1. First joint of funicle elongate, longer than the pedicel........................ 2
First joint of funicle not elongate, scarcely longer than the pedicel. (America.) tabacuim Fitch.
2. Femora and tibia light testaceous. (Japan.)------........apantelophagus, new species.
Hind femora green; other femora partly dark; in female the tibime mostly dark.
(Europe.)-------------------------------------............................................ pcecilopus, new species.
HYPOPTEROMALUS APANTELOPHAGUS, new species.
Female.-Length, about 2.75mm. Bluish green, the head distinctly wider than the thorax; head, pronotum, mesonotum, and metathorax between the lateral folds, with thimblelike punctures; antenna light brown, the scape testaceous; transverse line near rear of scutellum distinct; neck of mietathorax with sculpture similar to that on basal part; lateral folds well developed; median carina wanting or very slightly indicated; wings hyaline, veins testaceous, postmarginal vein as long as the marginal, the stigmal vein distinctly shorter; coxm blue-green, the rest of the legs yellowish testaceous, the femora and tibiae more or less suffused with brownish; abdomen smooth, shiny, narrow, the apical segments finely lineolated.
Male.-Length, about 2mm. Similar to the female except in secondary sexual characters; head and thorax more greenish than in the female; abdomen basally with a large yellowish spot; legs less suffused with brownish than in the female.
Habitat.-Japan.
Described from 6 females and 6 males from the series reared at the Gipsy Moth Parasite Laboratory from Glyptapanteles japonicus, received from Prof. Trevor Kincaid and Prof. S. I. Kuwana.
Type.-Cat. No. 12973, U. S. National Museum.
HYPOPTEROMALUS PCECILOPUS, new species.
Female.-Length, about 3mm. Green or bluish-green; head slightly wider than the thorax; head, pronotum, mesonotum, and metathorax






22 RESULTS FROM GIPSY MOTH PARASITE LABORATORY.

between the lateral folds with thimblelike punctures; antennse dark brown, the scape basally t.estaceous; transverse line on scutellum distinct, the punctures back of it larger than those immediately in front of it; neck of metathorax with sculpture similar to that of basal part; median carina distinct, lateral folds well developed; wings hyaline, veins testaceous; marginal and postmarginal veins subequal in length, the stigmal vein shorter; coxw green, front and middle femora brown with a metallic tinge, basal half of middle and hind tibie brown; hind femora green; knees, front tibie, apical half of middle and hind tibie, and all tarsi yellowish; abdomen smooth, shiny, the apical segments finely lineolated.
Male.-Length, about 2am. Similar to the female, except in secondary sexual characters; the scape entirely testaceous; tibim entirely light, slightly suffused with brownish; front and middle trochanters light, abdomen with a light spot basally.
Habitat. -Europe.
Described from 2 specimens reared at the Gipsy Moth Parasite Laboratory from Glyptapanteles sp.
Type.-Cat. No. 12974, U. S. National Museum.

Family EULOPHIDA Foerster.
Subhfamily ENTEDONIN.AD Ashnead.
Tribe ENTEDONINI Ashnaead.

Genus PLEUROTROPIS Foerster.

The species described from Japan by Ashminead in the genus Derostenus have lateral carinas on the netathorax and a distinct ring-joint to the antenna, so that they are properly to be referred to the genus Pleurotropis.
The following table will separate the females of the species from Japan which have 3 joints in the funicle; P. atamiensis Ashmead has
4 joints in the funicle and is probably an undescribed genus.
TABLE OF SPECIES OF THE G(ENUS PLEUROTROPIS.
1. Median lobe of mesothorax at apex with two large fovem. bifoveolatus Ashmead.
Median lobe of minesothorax at apex without fovew ............................ 2
2. Legs, including femora, testaceous........................mitsukurii Ashmead.
Legs with the femora dark................................................... 3
3. Head above with deep thimblelike punctures.................................. 4
Lead above weakly sculptured ............................... nawai Ashmead.
4. Ilind tibiw whitish.....................................orintalis, new species.
II ind tibiw dark colored................................... howardi, new species.






DESCRIPTIONS OF CERTAIN CHALCIDOID PARASITES. 23

PLEUROTROPIS ORIENTALIS, new species.

Female.-Length, about 1.5"'. Bronzy black, with green or purple reflections, the vertex and base of abdomen more greenish, the metathorax distinctly green; vertex with coarse thimblelike punctures, the frontal declivity above transverse groove smooth, below furrow with finer punctures, those below the insertion of the antenna still finer; antenna brown; mesonotum reticulate, parapsidal furrows not very apparent; scutellum reticulate all over, basally the lines more regular and longitudinal; metathorax smooth, median and lateral caring distinct; femora green, tibiwJ testaceous, tarsi more whitish; first segment of abdomen medially at apex and following segments finely punctured.
Male.-Unknown.
Habitat.-Japan.
Described from 5 specimens reared from Glyptapanteles japonicus at the Gipsy Moth Parasite Laboratory, from material received from Prof. Trevor Kincai(l and Prof. S. I. Kuwana.
Type.-Cat. No. 12975, U. S. National Museum.

PLEUROTROPIS HOWARDI, new species.

Female.-Length, about 2m. Green, with bluish reflections, the sides of the scutellum, the apical part of the parapsi(lal areas, and the pleure purplish-black; face below the transverse furrow bluish, with fine thimblelike punctures down to the insertion of antenna, below this-still more finely and weakly punctured; above the furrow with coarse thimblelike punctures; antenna green; pubescence of eyes distinct; mesothorax coarsely reticulate, the parapsidal furrows not very distinct anteriorly, posteriorly formed by triangular depressed areas which resemble scars, each with a single setigerous puncture; median lobe of mesonotum strongly emarginate at apex; scutellum at sides longitudinally striate, the apical portion reticulate, leaving the median basal area smooth; metathorax smooth, medially with two caring close together, lateral caring distinct; first segment of abdomen basally smooth, green, beyond this the abdomen purplish-black and finely punctured; legs green, the tarsi white, apically brown.
Male.-Unknown.
Habitat.-Japan.
Described from 8 specimens reared from cocoons of Glyptapanteles japonicus at the Gipsy Moth Parasite Laboratory, from material received from Prof. Trevor Kincaid and Prof. S. I. Kuwana.
Type.---Cat. No. 12976, U. S. National Museum.
Named in honor of Dr. L. O. Howard, under whose direction the parasite work is conducted.






24 RESULTS FROM GIPSY MOTH PARASITE LABORATORY.
Subfamily ETTLOPH-IN.W Howard.
Tribe EULOPHINI Ashmead.
Genus DIMMOCKIA Ashmead.
DIMMOCKIA SECUNDUS, new species.
Female.-Length, about 2mm. Bright green, the face and occiput covered with very fine, close strike; antenna brownish testaceous, the scape lighter colored; ring-joint distinct, pedicel shorter than first joint of funicle, about as long as joint 2; joints 2-4 subequal, only slightly longer than wide; club showing only 2 joints; mesonotum and metathorax between the lateral folds with fine thimblelike punctures, those of the scutellum finer than on the middle lobe of the mesonotum, those of the axills still finer and becoming in part fine strive; scutellum with a median longitudinal line of punctures which- are finer than the rest; median and lateral caring of metathorax very distinct; mesepisternum with thimblelike punctures; mesepimeron below finely reticulate, the upper part smooth; metapleurs and metathorax laterad of lateral caring rugose; legs light yellow, the hind coxe at base above with a small green spot; abdomen green, the apical margins of abdominal segments brownish; first and second segments smooth, the others with very fine lineolations.
Male.-Unknown.
IHabitat.-Japan.
Described from 5 female specimens reared at the Gipsy Moth Parasite Laboratory from Glyptapanteles japonicus, from material received from Prof. Trevor Kincaid and Prof. S. I. Kuwana.
Type.-Cat. No. 12977, U. S. National Museum.
In this genus the funicle is 4-jointed and the club shows only 2 joints, so that the antenna show 9 joints instead of 10 as given by Doctor Ashmead in his Classification of Chalcidoidea.

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