REPORT OF THE STATE ENTOMOLOGIST I913 205 



basally, fuscous apically. Legs a variable fuscous straw, the tarsi 

 slightly darker; claws very long, slender, strongly curved near the 

 base, the pulvilli shorter than the claws. Genitalia; basal clasp 

 segment short, stout; terminal clasp segment long, stout; dorsal 

 plate very short, broadly and roundly emarginate; ventral plate 

 long, the sides parallel, slightly constricted near the basal third and 

 expanded subapically, broadly and roundly emarginate. Type 

 Cecid. 1 22 1. 



Rhizomyia cerasi Felt 



1907 Felt, E. P. N. Y. State Mus. Bui. no, p. 114 (Dasyneura) 

 1908 N. Y. State Mus. Bui. 124, p. 340 (Arnoldia) 



This fuscous species was taken presumably on black cherry, 

 Prunus serotina, at Albany, N. Y., June 21, 1906. 



Male. Length 1 mm. Antennae probably one-half longer than 

 the body, thickly setose, dark brown, yellowish basally; 12 seg- 

 ments, the fifth with a stem one-quarter longer than the basal en- 

 largement, which latter has a length twice its diameter. Palpi ; 

 the first segment swollen, subquadrate, the second and third sub- 

 equal, each fully twice the length of the first. Face fuscous yellow- 

 ish. Mesonotum dark brown, the submedian lines pale yellowish 

 and sparsely setose. Scutellum pale yellowish, sparsely setose 

 apically, postscutellum fuscous yellowish. Abdomen dark fuscous 

 yellowish, lighter basally, sparsely clothed with pale yellowish hairs. 

 Wings hyaline. Halteres yellowish transparent. Legs pale straw, 

 tarsi darker. Genitalia; basal clasp segment stout, a conspicuous 

 internal tooth at the basal third; terminal clasp segment swollen 

 basally, long, slender; dorsal plate long, broadly and slightly emar- 

 ginate; ventral plate long, broadly Y-shaped. Type Cecid. 343. 



Rhizomyia hispida Felt 



1907 Felt, E. P. New Species Cecidomyiidae II, p. 9 (Arnoldia) 

 1908 N. Y. State Mus. Bui. 124, p. 290, 340 (Arnoldia) 



This pale brown midge was taken on Cornus, probably C. s t o 1- 

 o 11 i f e r a, at Albany, N. Y., July 6, 1906. 



Male. Length 1 mm. Antennae longer than the body, thickly 

 haired, dark brown, fuscous basally; 12 segments, the fifth with 

 a stem one-quarter longer than the basal enlargement, which latter 

 has a length thrice its diameter; terminal segment produced, sub- 

 cylindric, obtuse. Palpi; the first segment short, subquadrate, the 

 second twice the length of the first, irregular, the third a little 

 longer and more slender than the second. Mesonotum dark brown, 

 submedian lines yellowish. Scutellum yellowish orange, post- 

 scutellum yellowish. Abdomen pale brown, thickly setose. Wings 

 hyaline, costa dark brown. Halteres yellowish basally, whitish 

 apically. Coxae, femora and tibiae mostly pale yellowish, tarsi 



