120 PROOEEDINaS OF THE NATIONAL MUSEUM. vol. 4f). 



pleura with delicate long, pale hairs; halteres brownish-black, the stalk 

 brownish-yellow. All the coxae with yellow hair, that of the mid- 

 dle ones mixed somewhat with black; femora and tibiae moderately 

 shining, hind femora on inner side polished. Abdomen wholly black, 

 venter the same; hairs of abdomen dense and pale on the sides at base, 

 elsewhere short and mostly black. Wings distinctly and uniformly 

 infuscated, stigma brown, long, extending from before the apex of 

 the auxiliary almost to the apex of the second vein. 



Length of male, 8 mm.; of female, 5.3 mm. 



Material examined: 



One male, Webber Lake, California, July 26, 1876. 



Bigot's type female. Mount Hood, Oregon. 



Sixty other females, distributed as follows: Douglas, Alaska (in 

 Melander's collection); Bear Lake (Currie, Caudell), Stickeen River 

 Canyon (Wickham), Kaslo (Caudell), Mount Cheam (J. Fletcher), all 

 in British Columbia. Lake Louise, Alberta (C. S. Minot, in C. W. 

 Johnson's collection). Longmires Springs (J. M. A.), Asliford (Dyar 

 and Caudell), Olympic Mountains (Kincaid), all in Washington. 

 Collins, Idaho (Melander). Midvale (in C. W. Johnson's coll.), and 

 Gallatin Valley (Cooley), in Montana. Webber Lake, California, 

 July 21, 1876 (Osten Sacken). Emigration Canyon, Utah (A. K. 

 Fisher). Rabbit Ear Pass, Colorado (in Melander's coll.); Longs 

 Peak Trail, Colorado (Cockerell), and simply Colo. 2019, from the 

 Agricultural College in the United States National Museum. 



I associate this male with Bigot's species because there are no in- 

 dications to the contrary, and both sexes were collected by Osten 

 Sacken at the same place only a few days apart. Strangely enough, 

 nobody since his time appears to have obtained this species of female 

 with any male. I thought for some time that the male which I have 

 associated with Icincaidi might belong here; but on examining 

 Professor Kincaid's material it appeared that he had captured it with 

 the other female. 



This species is tlie bad biter par excellence, in my experience, as 

 described in the introduction. 



SYMPHOROMYIA BARBATA, new species. 



Male. — An opaque black, moderately cinereous species with con- 

 cave third joint, bushj^ pilose face, infuscated halteres, black femora, 

 yellow tibiae, and a thornlike bunch of setae on middle coxa; fourth 

 posterior cell nearly or quite closed in the margin. 



Eyes contiguous, vertical triangle with long black pile, frontal bare, 

 rather ashy; first antenna! joint long, hardly swollen, black, cinere- 

 ous, with long black pile which is longer above than below; third 

 joint small, black, concave below arista and distinctly angulated 

 below the concavity, its vertical diameter equal to that of the first 



