266 



NEW YORK STATE MUSEUM 



Female. Length 2.5 mm. Antennae probably extending to the 

 third abdomina,] segment, sparsely haired, yellowish brown; 18 seg- 



f-i 





u 









b 



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-haif times its diameter, 

 tapering at each extremity; terminal segment reduced, broadl}^ oval. 

 Mesonotum shining dark brown, submedian lines sparsely haired. 



Scutellum reddish brown, 

 postscutellum a little lighter. 

 Abdomen sparsely haired, 

 light brown, the tenninal 

 segment somewhat darker, 

 venter a little lighter. 

 Wings hyaline, costa light 

 brown ; halteres yellowish 

 brown basall37-, yellowish 

 white apically. Legs a 

 nearly uniform light brown ; 

 claws long, stout, evenly 

 curved, the pulvilli one-ha f 

 longer than the claws. 

 Ovipositor about two-thirds' 

 the length of the abdomen, 

 the terminal lobes long, na - 

 rowly oval. Type Cecid. 

 940. 



Rhopalomyia pilosa Felt 



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



This species was reared by Mr T. N. WiUing of Medicine Head, 



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



prestimably on Antennaria. 



Gall. The galls are white, woolly aggregations with nearly sno\^^- 

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

 shelled cavities inhabited by the larvae. 



Fig. 78 Rhopalomyia bigelo- 

 vioides; tip of ovipositor, lateral 

 view, enlarged (original) 



