l68 NEW YORK STATE MUSEUM 



Dasyneura americana Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 348 (D . galii) 

 1913 Psyche, 20 1136 (D. americana proposed) 



This deep red species was reared September i, 1907 from irreg- 

 ular, flower bud galls on bedstraw, Galium asprellum, 

 collected at Magnolia, Mass., by Miss Cora H. Clarke. 



The earlier name was preoccupied by D . galii H. Lw., to which 

 this species is allied, though there is a marked difference in the 

 ventral plate as illustrated by Rubsaamen. There are probably 

 other differences. 



Gall. This is an irregularly aborted, flower bud some 3 mm in 

 diameter and containing pale yellowish larvae. 



Female. Length 1.5 mm. Antennae extending to the fifth ab- 

 dominal segment, sparsely haired, dark brown; 15 segments, the 

 fifth with a length twice its diameter, tapering slightly apically, th^* 

 terminal segment reduced, broadly oval. Palpi ; the first segment 

 irregular, the second subrectangular, with a length three times its 

 diameter, the third a little longer and more slender, the fourth only 

 one-quarter the length of the third. Mesonotum shining reddish 

 brown, the submedian lines indistinct. Scutellum and postscutel- 

 lum fuscous yellowish. Abdomen deep red, the basal segments and 

 distal margins of terminal segments more or less fuscous. Wings 

 hyaline, costa dark brown. Halteres yellowish basally, fuscous 

 apically. Coxae and base of femora fuscous yellowish, the distal 

 portion of femora, tibiae and tarsi a variable brown, the distal tar- 

 sal segments darker; claws strongly curved, the pulvilli longer than 

 the claws. Ovipositor yellowish orange, as long as the abdomen, 

 terminal lobes stout, with a length two and one-half times the 

 diameter, broadly rounded. 



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

 haired; 16 segments, the fifth with a stem one-quarter longer than 

 the cylindric basal enlargement, which latter has a length twice its 

 diameter ; terminal segment reduced, narrowly oval. Palpi ; first 

 segment short, subquadrate, the second irregularly and narrowly 

 ovate, the third one-half longer than the second, slender, the fourth 

 one-half longer than the third, slender. Colorational, alar and 

 pedal characters presumably the same as in the female. Genitalia ; 

 basal clasp segment short, stout ; terminal clasp segment long, stout : 

 dorsal plate deeply and broadly incised ; the lobes broadly rounded, 

 ventral plate long, broadly and roundly emarginate ; harpes stout, 

 irregular apically. Type Cecid. ai678k. 



Dasyneura corticis Felt 



1909 Felt, E. P. Econ. Ent. Jour., 2 .-289. 

 1910 Econ. Ent. Jour., 3 1355. 



This small midge was reared by Miss Cora H. Clarke May 21, 

 1909 from small willow twigs, Salix species, taken in the Arnold 



