136 NEW YORK STATE MUSEUM 



postscutellmn fuscous yellowish. Abdomen fuscous yellowish with 

 the second, third and fourth abdominal segments fuscous, rather 

 thickly clothed with fine hairs. Wings hyaline, costa pale brown; 

 halteres pale yellowish basally, fuscous apically. Legs a nearly 

 uniform dark brown, Hghter ventrally; claws long, slender, strongly 

 curved. Genitalia (pi. 20, fig. 4); basal clasp segment long, slender, 

 obliquely truncate; terminal clasp segment long, swollen basally; 

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

 roimded; ventral plate broad, narrowly rounded; style stout, short. 

 Type Cecid. 465. 



Lestodiplosis populifolia Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 408 



1915 N. Y. State Mus. Bui. 175, pi. 3, fig. 4 



191 8 N. Y. State Mus. Bui. 200, p. 38 



This fuscous yellowish male was reared July 22, 1907 from a 

 marginal leaf roll on poplar, Populus tremuloides, taken 

 at Albany, N. Y. 



Gall. A marginal leaf roll 10 mm long, 2 mm wide, slightly dis- 

 torting and shortening that side of the leaf. 



Male. Length 1.5 mm. Antennae one-fourth longer than the 

 body, thickly haired, light brown, the basal segments yellowish; 

 fourteen segments, the fifth with stems twice their diameters; distal 

 node with a length one-half greater than its diameter. Palpi; the 

 first segment short, stout, subquadrate, the second a little longer, 

 narrowly oval, the third a little longer and more slender than the 

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

 third. Mesonotum dark brown, the submedian lines fuscous yel- 

 lowish. Scutellum reddish orange, postscutellum a little darker. 

 Abdomen fuscous yellowish, the distal segments yellowish. -Geni- 

 talia fuscous. Wings hyaline, costa dark brown; halteres whitish 

 transparent. Legs a nearly uniform dark brown ; claws long, slender, 

 evenly curved, the pulvilli nearly as long as the claws. Genitalia; 

 basal clasp segment long, slender; terminal clasp segment long,' 

 slender; dorsal plate short, stout, deeply and triangularly emarginate, 

 the lobes narrowly rounded; ventral plate a little longer, slender, 

 broadly rounded. Type Cecid. ai49o. 



Lestodiplosis fraxinifolia Felt 

 1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 408 

 1918 N. Y. State Mus. Bui. 200, p. 179 



The fuscous yellowish male was reared July 23, 1907 from badly 

 rolled ash, Fraxinus, leaflets taken by L. H. Joutelat Newfoundland. 

 N.J. 



Gall. The whitish larvae occurred in badly rolled, young ash 

 leaflets. 



