104 NEW YORK STATE MUSEUM 
extending to the fourth abdominal segment, the dorsum of the 
latter with the segments margined with three or four rather sparse 
rows of stout, chitinous spines. 
Male. Length, 2 mm. Antennae as long as the body, thickly 
haired, whitish transparent; fourteen segments, the fifth with stems 
one-half and one and one-fourth times their diameters respectively; 
the distal enlargement cylindric, with a length about twice its diam- 
eter, a broad, scattering whorl of stout setae, the circumfila with 
short loops; terminal segment produced, the distal enlargement with 
a length three times its diameter, tapering. Palpi; the first segment 
short, stout, the second with a length about four times its diameter, 
the third a little shorter, stouter, the fourth twice the length of the 
third, dilated. Mesonotum yellowish brown. Scutellum and post- 
scutellum orange. Abdomen rather thickly haired, fuscous yellowish, 
genitalia yellowish. Wings hyaline, costa pale straw. Halteres 
yellowish basally, fuscous apically. Coxae and legs fuscous yel- 
lowish, the tarsi tinged with pale orange; claws slender, evenly 
curved, the pulvilli a little shorter than the claws. Genitalia; basal 
clasp segment long, stout; terminal clasp segment short, tapering; 
dorsal plate long, deeply and triangularly emarginate, the lobes 
narrowly rounded; ventral plate long, slightly expanded, broadly 
and roundly emarginate, the lobes slightly rounded. 
Female. Length 3 mm. Antennae extending to the second 
abdominal segment, sparsely haired, pale yellowish and variably 
tinged with carmine; fourteen sessile segments, the fifth with a 
length three and one-half times its diameter; subbasal whorl scat- 
tering, broad, subapical whorl scattering; circumfila near the basal 
half and apically; terminal segment slightly reduced, narrowly oval. 
Palpi; first segment stout, with a length three times its diameter, 
the second as long, more slender, the third a little longer, somewhat 
dilated, the fourth as long as the third, more dilated. _Mesonotum 
yellowish brown, the submedian lines rather thickly haired. Scu- 
tellum and postscutellum pale orange. Abdomen sparsely haired, 
brownish orange; ovipositor pale yellowish. Halteres yellowish 
orange, fuscous subapically. Coxae and femora fuscous straw, 
tibiae and tarsi somewhat darker; claws rather stout, strongly 
curved, the pulvilli longer than the claws. Ovipositor short, the 
lobes tapering, narrowly rounded. Type Cecid. a1g48. 
: Caryomyia arcuaria Felt 
1908 Felt, E. P. N.Y. State Mus. Bul. 124, p. 338 (Hormomyia) 
1918) -———__— | (NY, state! Mus, Buls200,;p.,46 
This peculiar male was separated from a series of specimens 
reared by the late Dr M. T. Thompson of Clark University, Worces- 
ter, Mass., from what appear to be a typical lot of Caryomyia 
caryae galls. This insect may have come from one of these 
galls. 
_ Male. Length 3mm. Antennae extending to the fourth abdom- 
inal segment, sparsely haired, light yellowish; fourteen segments, 
