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 distalh^ 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, sHghtly 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 September 4, 1907 from 

 irregularly thickened and folded chokecherry, P r u n u s v i r - 

 g i n 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, uniarticulate; 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; temiinal 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 Httle 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. Scutellum bright red, postscutellum a little darker. Abdomen 

 yellowish brown, reddish brown basally. Genitalia yellowish. 

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



