146 NEW YORK STATE MUSEUM 



15 sessile segments, the fifth subcyhndric, with a length nearly 

 twice its diameter ; terminal segment somewhat produced, tapering 

 to an obtuse apex. Palpi ; the first segment short, stout, subquad- 

 rate, the second about as long, narrowly oval, the third one-half 

 longer than the second, more slender, the fourth a little longer and 

 more slender than the third ; face yellowish. Mesonotum dark 

 brown, the submedian lines thickly haired. Scutellum brownish red, 

 postscutellum yellowish red. Abdomen deep brown, the incisures 

 dark reddish, pleurae and venter pale yellowish. Ovipositor fuscous 

 yellowish. Wings hyaline, costa dark brown. Halteres pale yellow- 

 ish, slightly fuscous apically. Coxae and base of femora pale 

 yellowish, the latter slightly fuscous distally ; tibiae and tarsi dark 

 brown ; claws long, rather stout, strongly curved, the pulvilli shorter 

 than the claws. Ovipositor about as long as the abdomen, the 

 terminal lobes broad, narrowly rounded apically. Type Cecid. ai/OO. 



Dasyneura flavescens Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124. p. 344 



This yellowish species was taken on ash, Fraxinus, at Albany, 



N. Y., July 17, 1906. 



Female. Length i mm. Antennae extending to the third abdo- 

 minal segment, sparsely haired, dark brown; 15 segments, the fifth 

 with a length about one-half greater than its diameter, the terminal 

 segment narrowly oval. Palpi ; first segment short, stout, the second 

 rectangular, with a lenp-th three times its diameter, the third longer, 

 more slender and the fourth one-half longer than the third, more 

 slender. Mesonotum dark brown, the submedian lines yellowish 

 and fusing posteriorly to form a consoicuous yellowish median 

 area. Scutellum palo orange, postscutellum yellowish. Abdomen 

 pale yellowish, the dorsal sclerites with the second and third ab- 

 dominal segments dark brown and with lateral dark brown markings 

 on the posterior margins of the sclerites of the fourth and fifth 

 segments : ovipositor pale yellowish. Wings hyaline, costa dark 

 brown. Halteres yellowish transparent ; coxae, femora and tibiae 

 mostly pale yellowish, tarsi mostly dark brown ; claws stout, strongly 

 curved, the pulvilli as long as the claws. Ovipositor nearly as long 

 as the body, the slender, terminal lobes with a length three times 

 the breadth. Type Cecid. 601. 



Dasyneura rhois Coq. 



1895 Coquillett, D. W. Ins. Life, 7:348 (Cecidomyia) 

 1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 346 



This species does not appear to have been noticed since its dis- 

 covery in 1895. It was reared by Mr Coquillett from galls on the 

 roots of the common poison ivy sent to him in March 1894 by 

 Mr W. H. Harrison of Lebanon Springs, N. Y. The adults began 

 to issue May 3d and continued up to the i8th of the month. 



