REPORT OF THE STATE ENTOMOLOGIST I917 185 



constricted, the distal portion of the stem greatly swollen at its basal 

 third, apically an elongate subconic tip. Palpi; the first segment 

 short, stout, swollen distally, the second nearly twice the length of 

 the first, slightly irregular, the third as long as the second, more 

 slender, lanceolate, the fourth one-fourth longer than the third, 

 slightly stouter, irregularly cylindric. Face pale yellowish. Meso- 

 notum dark reddish brown with distinct submedian yellowish lines; 

 posterior median area yellowish. Scutellum yellowish with sparse 

 apical setae, postscutellum yellowish. Abdomen pale yellow with 

 an irregular, reddish spot on the second and third abdominal seg- 

 ments. Wings hyaline, costa pale straw brown; halteres yellowish 

 transparent basally, slightly reddish apically. Legs a nearly uniform 

 pale fuscous straw color; claws slender, uniformly curved. Genitalia ; 

 basal clasp segment diverging at nearly right angles, deeply exca- 

 vated at the distal third; terminal clasp segment slightly swollen at 

 the base; dorsal plate broad, deeply and narrowly incised, the lobes 

 irregularly rounded laterally, acute distally, the margin of the distal 

 third with a series of slight elevations; ventral plate long, slender, 

 deeply and roundly emarginate, the lobes long and narrow, obtusely 

 rounded; style rather short, stout. Type Cecid. 332a. 



Mycodiplosis cerasifolia Felt 



1907 Felt, E. P. New Species of Cecidomyiidae II, p. 21 



1908 — ■ — ■ N. Y. State Mus. Bui. 124, p. 302, 400 



The yellowish brown male was reared vSeptember 4, 1907 from 

 irregularly thickened and folded chokecherry, Prunus vir- 

 gin i a n a , leaves taken by L. H. Joutel at Newfoundland, N. J. 



Gall. An irregular, thickened, folded, dark-green leaf containing 

 a number of larvae. The upper surfaces are apposed and the thick- 

 ening extends most of the length of the leaf, nearly to its edge and 

 is slightly discolored, being irregularly mottled with darker green. 



Larva. Length 3 mm. Whitish, moderately stout, head small, 

 antennae rather long, stout, tmiarticulate; breastbone bidentate, the 

 shaft subobsolescent ; skin coarsely shagreened; posterior extremity 

 deeply bilobed. 



Male. Length .75 mm. Antennae twice the length of the body, 

 thickly haired, yellowish brown, the basal segment yellowish; 14 

 segments, the fifth with stems two and two and one-half times their 

 diameters, respectively; terminal segment produced, the distal 

 enlargement broadly oval, constricted apically and bearing a rather 

 short, stout, conical appendage. Palpi; the first segment rather 

 stout, with a length about one-half greater than its diameter, the 

 second a little longer, more slender, the third as long as the second, 

 more slender, the fourth one-third longer than the third and stouter ; 

 face yellowish. Mesonotum dark brown, the submedian lines indis- 

 tinct. vScutellum bright red, postscutellum a little darker. Abdomen 

 yellowish brown, reddish brown basally. Genitalia yellowish. 

 Wings hyaline, costa light brown; halteres yellowish orange, fuscous 



