ADAMS : NORTH AMERICAN DIPTERA. 439 



cast and with yellow pile ; knobs of.halteres blackish, base yel- 

 lowish. Abdomen black, grayish brown pollinose, sparsely 

 covered with yellow tomentum and pile. Coxae black, yellow- 

 ish pollinose, femora except tips piceous, with sparse tomentum, 

 extreme tip of femora, tibia^ and basal half of metatarsi yel- 

 lowish, remainder of tarsi fuscous. Wings subfuscous, stigma 

 brown. Length, 5 mm. 



Seven specimens ; Colorado and Wyoming. The ones from 

 Colorado were received from C. W. Johnson, to whom they are 

 returned. 



Symphoromyia flavipalpis, n. sp. 



Female : General color ash gray ; pile of front and vertex 

 black, of occiput, cheeks and palpi white ; first joint of anten- 

 nae moderately enlarged, brownish yellow, with short black 

 hairs ; second joint small, darker, third joint yellow, one and a 

 half times as broad as the first joint, arista black ; palpi and 

 sides of epistoma yellow. Mesonotum with three indistinct 

 brownish stripes, the central one abbreviated behind and 

 divided longitudinally by a brownish yellow line, lateral or 

 subdorsal stripes abbreviated in front, and divided at the 

 suture; pile mixed white and black; pleurae nearly bare,. pile 

 of scutellum black, hal teres yellow. Abdomen brownish gray 

 pollinose, pile white. Coxae black, pile white, femora except 

 extreme tip of a brownish cast ; tip of femora, tibiae and basal 

 half of metatarsi yellowish ; remainder of tarsi fuscous. Wings 

 hyaline, veins dark brown, stigma yellow. Length, 6 mm. ; 

 wings, 6.25 mm. 



Very close to S. cinerea Johns. On examination of two type 

 specimens of cinerea, I noticed the palpi of the male to be black, 

 and of the female to be black on the apical half. I wrote to 

 Professor Johnson to examine the remaining type specimens, and 

 he informs me that the tip of the palpi of these also are tinged 

 with black. The third joint of the antennae is broader, and the 

 abdomen is slightly different in color. 



One specimen, from Wasatch mountains, received from 

 C. W. Johnson ; another one from Colorado. 



