108 NEW YORK STATE MUSEUM 



Rhabdophaga absobrina Felt 



1907 Felt, E. P. N. Y. State Mtts. Bui. no, p. 113. Sep. p. 16-17 

 1908 N. Y. State Mus. Bui. 124, p. 355 



This dark brown male was taken May 17, 1906 at Albany, N. Y., 

 in the vicinity of maple, elm and various bushes. 



Male. Length 2.5 mm. Antennae extending to the base of the 

 abdomen, dark brown; 19 segments, the fifth with a stem about 

 one-half the length of the basal enlargement; terminal segment pro- 

 longed, broadly rounded. Palpi; first segment subquadrate, the 

 second and third one-half longer than the first, a little more slender, 

 the fourth one-quarter longer than the third; face dark brown. 

 Mesonotum dark brown with distinct sublateral and submedian 

 rows of golden yellow hairs. Scutellum and postscutellum reddish 

 brown. Abdomen dark brown, rather thickly clothed laterally with 

 silvery white hairs in patches. Wings hyaline, costa dark brown. 

 Halteres yellowish transparent basally, fuscous apically. Legs a 

 variable brown, lighter ventrally; tarsi dark brown; claws slender, 

 strongly curved. Genitalia; basal clasp segment stout; terminal 

 clasp segment swollen at base, obtuse; dorsal plate deeply incised, 

 almost divided ; ventral plate broad at base, deeply incised. Harpes 

 stout, strongly chitinized internally, slightly convolute, broadly 

 rounded and with two apposed subquadrate chitinous processes. 

 Type Cecid. 40. 



Rhabdophaga hirticornis Felt 



1909 Felt, E. P. Econ. Ent. Jour., 2:290 



This species was reared at Albany, N. Y., September 20, 1908 and 

 April 1909 from jars containing various Cecidomyiid galls, notably 

 those of Caryomyia persicoides and Schizomyia 

 p o m u m . It is probable that the association of this insect with 

 these two species was accidental. 



Male. Length 2 mm. Antennae nearly as long as the body, 

 18 segments, the fifth with a stem three-quarters the length of the 

 cylindric basal enlargement, which latter has a length one-quarter 

 greater than its diameter ; terminal segment reduced, narrowly oval. 

 Palpi fuscous yellowish; first segment irregularly subquadrate, the 

 second with a length five times its diameter, the third a little longer, 

 dilated, the fourth as long as the third, slender. Mesonotum 

 reddish brown, the submedian lines and anterior and lateral margins 

 thickly white-haired. Scutellum and postscutellum reddish brown. 

 Abdomen dark brown, the segments sparsely margined posteriorly 

 with whitish hairs; pleurae yellowish white, venter pale yellowish; 

 genitalia fuscous yellowish. Wings hyaline, costa dark brown. 

 Halteres yellowish transparent. Coxae and femora basally yel- 

 lowish, the distal portion of femora and tibiae fuscous yellowish, 

 the tarsi mostly dark brown ; claws large, slender, curved, unidentate, 

 the pulvilli longer than the claws. Genitalia; basal clasp segment 

 long, slender ; terminal clasp segment long, stout ; dorsal plate rather 



