REPORT OF THE STATE ENTOMOLOGIST IQI7 189 
Male. Length 1.75 mm. Antennae one-third longer than the 
body, thickly haired, light brown, the basal segments yellowish; 
14 segments, the fifth almost trinodose with stems one and one-fourth 
and four times their diameters, respectively; terminal segment, 
distal enlargement subcylindric, slightly constricted near the basal 
fourth, with a length about four times its diameter; apically a long, 
slender, fingerlike process. Palpi quadriarticulate, the first segment 
rather long, cylindric, with a length over twice its diameter, the 
second one-half longer than the first, the third one-fourth longer 
than the second, and the fourth a little longer than the third, each 
successively more slender; face yellowish transparent; thorax and 
abdomen pale yellowish orange, the latter slightly darker at the 
extremity. Genitalia fuscous yellowish. Wings with a yellowish 
tinge, costa light fuscous yellowish; halteres pale yellowish, light 
fuscous subapically. Coxae and femora basally pale yellowish, the 
distal portion of femora and most of tibiae yellowish straw, the tarsi 
mostly dark brown, the distal segments nearly black; claws long, 
stout, strongly curved, the pulvilli about one-third the length of 
the claws. Genitalia; basal clasp segment long, a broadly rounded 
process near the internal basal third; terminal clasp segment long, 
stout; dorsal plate short, broad, deeply and narrowly incised, the 
lobes broadly and roundly emarginate, the angles with stout setae, 
the lateral ones produced; ventral plate long, expanded distally, 
deeply and triangularly incised, the lobes short, stout, irregularly 
rounded; style long, stout. Type Cecid. rioqa. 
Mycodiplosis corylifolia Felt 
1907 Felt, E. P. New Species of Cecidomyiidae II, p. 20 
1908 —————__ NY. State Mus. Bul. 124, p. 301, 401 
Both sexes were reared July 23, 1907 from a fuzzy, wrinkled leaf 
fold gall on hazel, Corylus americana, taken at West 
Nyack, N. Y., and produced by Lasiopteryx coryli. 
This species is probably zoophagous. 
Male. Length 1 mm. Antennae as long as the body, thickly 
haired, light brown, yellowish basally; 14 segments, the fifth with 
stems two and three and one-half times their diameters. Palpi; 
the first segment short, stout, subquadrate, the second narrowly 
oval, the third a little longer and more slender, the fourth more 
slender than the third. Thorax and abdomen pale yellowish. Scutel- 
lum and base of the abdomen a little darker. Genitalia whitish 
transparent. Wings hyaline, costa light brown, the wings tinged 
with yellowish. Coxae and base of femora yellowish transparent, 
the distal portion of femora and tibiae pale yellowish, tarsi fuscous 
straw, the distal segments darker; claws long, slender, strongly 
curved basally, the pulvilli one-half the length of the claws. Gent- 
talia; basal clasp segment long, slender; terminal clasp segment swol- 
len basally, slender; dorsal plate short, broad, deeply and narrowly 
emarginate, the lobes broadly and roundly emarginate, the lateral 
