l82 NEW YORK STATE MUSEUM 



angularly emarginate, the lobes diverging, long, slender, broadly 

 rounded; style long, slender. Type Cecid. 299. 



Itonida paucifila Felt 

 1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 413 (Cecidomyia) 

 This yellowish brown male was taken June 15, 1906 on deutzia 

 at Albany, N. Y. 



Male. Length .75 mm. Antennae a little longer than the body, 

 thickly haired, dark brown; fourteen segments, the fifth with stems 

 three-fourths and one and one-fourth times their diameters. Palpi; 

 the first segment short, subquadrate, the second more than twice as 

 long, more slender, the third one-half the length of the second, nar- 

 rowly rounded, the fourth about twice the length of the third; face 

 fuscous yellow. Mesonotum dark brown, yellowish laterally and 

 posteriorly. Scutellum pale yellowish, postscutellum and abdomen 

 yellowish brown. Wings hyaHne, costa light brown; halteres yellow- 

 ish transparent basally, slightly fuscous apically. Legs a nearly 

 uniform pale brown; claws long, slender, evenly curved. Genitalia; 

 dorsal plate broad, deeply and narrowly emarginate, subtruncate 

 distally, the angles setose, ventral plate long, slender, broadly and 

 roundly emarginate, the lobes long, diverging, broadly rounded; 

 style long, slender, narrowly rounded. Type Cecid. 297. 



Itonida americana Felt 

 1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 413 (Cecidomyia) 

 The pale yellow male was taken June 28, 1906 in a trap lantern at 

 Poughkeepsie, N. Y. 



Male. Length 1.5 mm. Antennae nearly as long as the body, 

 thickly haired, a very pale brown, yellowish basally; fourteen seg- 

 ments, the fifth with stems each three and one-half times their 

 diameter. Palpi probably quadriarticulate; face pale yellowish. 

 Thorax and abdomen a nearly uniform pale yellowish, the terminal 

 abdominal segments slightly more yellowish. Wings hyaline, the 

 membrane yellowish, costa pale yellowish brown; halteres pale yellow- 

 ish. Legs a nearly uniform pale yellowish straw color, the distal 

 tarsal segments slightly darker; claws rather stout, short, strongly 

 curved near the middle. Genitalia; dorsal plate broad, deeply, 

 narrowly and triangularly emarginate, the lobes diverging, truncate, 

 the lateral angles broadly rounded, the lateral margins narrowing 

 anteriorly, the_ internal distal angles, each with a long, stout spine, 

 the external with a group of long, coarse setae; ventral plate broad, 

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

 narrowly rounded; style stout, long, curving, broadly rounded. 

 Type Cecid. 420. 



Itonida canadensis Felt 

 1911 Felt, E. P. Econ. Ent. Jour., 4:558 



1915 N. Y. State Mus. Bui. 175. pi. 2, fig. 12 



1918 N. Y. State Mus. Bui. 200, p. 135, 150 



