266 



NEW YORK STATE MUSEUM 



Female. Length 2.5 mm. Antennae probably extending- to the 

 third abdominal segment, sparsely haired, yellowish brown; 18 seg- 



U 





i 





Fig. 77 Rhopalomyia bigelovioides; fifth antennal segment and 

 palpus, (a) of female (b) of male, enlarged (original) 



ments, the fifth with a length two and one-half times its diameter, 



tapering at each extremity; terminal segment reduced, broadly oval. 



Mesonotum shining dark brown, submedian lines sparsely haired. 



Scutellum reddish brown, 

 postscutellum a little lighter. 

 Abdomen sparsely haired, 

 light brown, the terminal 

 segment somewhat darker, 

 venter a little lighter. 

 Wings hyaline, cost a light 

 brown ; halteres yellowish 

 brown basally, yellowish 

 white apically. Legs a 

 nearly uniform light brown; 

 claws long, stout, evenly 

 curved, the pul villi one-ha f 

 longer than the claws. 

 Ovipositor about two-thirds 

 the length of the abdomen, 

 the terminal lobes long, n;i - 

 rowly oval. Type Cecid. 

 040. 

 Rhopalomyia pilosa Pelt 

 1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 366, 367 

 Tin's species was reared by Mr T. N. Willing of Medicine Mead. 



North West Territory, from a large, densely woolly apical gall, 



presumably on Antennaria. 



Gall, The galls are white, woolly aggregations with nearly snow- 

 white fibers about 5 mm long, radiating from rather hard, thin- 

 shelled cavities inhabited by the larvae. 



Fig. 78 Rhopalomyia bigelo- 

 vioides; tip of ovipositor, lateral 

 view, enlarged (original) 



