90 NEW YORK STATE MUSEUM 



enlarged distally, the second one-half longer, broadly oval, the third 

 one-fourth longer than the second, more slender, and the fourth 

 about one-fourth longer than the third, more slender; face yellowish. 

 Mesonotum dark brown. Scutellum reddish, postscutellum fuscous 

 mesially, yellowish laterally. Abdomen yellowish red, fuscous later- 

 ally. Wings hyaline, costa light reddish. Halteres yellowish at 

 base, fuscovis apically. Coxae, femora and tibiae pale yellowish, 

 tarsi yellowish or variably suffused with carmine; claws stout, 

 uniformly curved. Genitalia; basal clasp segment short, stout; 

 terminal clasp segment much swollen at the basal third; dorsal 

 plate short, broad, deeply and narrowly incised, the lobes obliquely 

 truncate; ventral plate deeply and triangularly emarginate, the lobes 

 broadly rounded. Type Cecid. 6i. (See plate lo, fig. i) 



Lobopteromyia tiliae Felt 



1907 Felt, E. P. N. Y. State Mus. Bui. no, p. 161 (Contarinia) 



1908 N. Y. State Mus. Bui. 124, p. 390 



This light-brown male was taken May 16, 1906 on basswood, 

 Tilia americana, at Karner, N. Y. 



Male. Length 1.5 mm. Antennae a little longer than the body, 

 thickly fine haired, light brown; 14 segments, the fifth with stems 

 one-half and three times their diameters respectively; terminal 

 segments with the basal enlargement slightly produced and rather 

 narrowly separated from the prolonged, fusiform distal enlargement, 

 which latter has an acute apex. Palpi; the first segment short, 

 subquadrate, second a little longer, stout, swollen distally, the third 

 oval, a little longer than the second, the fourth a little longer than 

 the preceding and the fifth one-half longer than the fourth. Meso- 

 notvim dark brown. Scutellum orange brown. Abdomen light brown. 

 Wings hyaline, Costa reddish; halteres yellow and reddish trans- 

 parent. Legs, coxae, femora and tibiae mostly yellowish transparent, 

 extremity of tibiae and tarsi with a distinct reddish cast; claws stout, 

 strongly curved, simple. Genitalia; basal clasp segment stout; 

 terminal clasp segment stout; dorsal plate broad, deeply emarginate, 

 the lobes truncate; ventral plate broad, deeply emarginate, lobes 

 obliquely rounded. Type Cecid. 25. (See plate 6, fig. 5) 



Lobopteromyia caricis Felt 



190S Felt, E. P. N. Y. State Mus. Bui. 124, p. 390 



The male is light brown and was taken May 16, igo6 on sedge, 



Carex stricta, at Karner, N. Y. 



Male. Length 1.66 mm. Antennae nearly as long as the body, 

 thickly fine haired, light brown; 14 segments, the fifth with stems 

 one-half and two and one-half times their diameters respectively, 

 the distal enlargement broadly fusiform. Palpi; the first segment 

 short, stout, subquadrate, the second one-half longer, roundly sub- 



