INSECUTOR INSCITI^ MENSTRUUS 89 



TWO NEW BLEPHAROCERIDAE 



(Dipt era) 



By C. B. D. GARRETT 



When collecting in the rough country of Wilson Creek, it 

 being the first large creek from the west running into the Elk 

 River above the Elk Prairie bridge, which is 4 miles out of 

 Michel, British Columbia, in August, I noticed Blepharocerids 

 sitting on the under side of logs that had fallen across the 

 creek. They seemed to enjoy places where there was a moist 

 spray, and it did not matter if there was moss on the log or not. 

 They were quite common on the 26th of August, when I took 

 eleven in an hour or so, they being more abundant for the 

 first mile above the north and south forks, up the south one. 

 About 5 p. m. they used to sit on the end of the boughs of 

 spruce trees along the creeks from 8 to 10 feet up. Upon 

 looking up the name the species seemed to be new, and a recent 

 letter from Dr. J. M. Aldrich says that he thinks there have 

 been no new American species described since Dr. Kellogg's 

 paper (Proc. Cal. Acad. Sci., 1903). It is therefore through 

 the kindness of Dr. Aldrich that I offer these as new. 

 Bibiocephala canadensis, new species. 



Length : Male and female about 10 mm. ; wing, 10 mm. 



Male: General color obscure blackish gray brown, leg-bases 

 yellow shading to brown tarsi. Head, occiput and face gray- 

 ish white pruinose, eyes narrowly separated (in both sexes), 

 and bisected about midway ; facets with thick short golden 

 pilosity. Antennae 15-segmented, all almost equal in length 

 except the basal one, vv^hich is longest, and segment 3 about 

 twice as long as the following ones. It also has a pale yellow 

 base, while all the rest are brown. Palpi, pale yellow, segments 

 2 and 3 about equal in length, as are 4 and 5. Thorax, dorsum 

 opaque black brown, usually with a cephalic thin yellow line, 

 all the mid portion at the base of the scutellum pale yellow, 

 branching V-wise to near the tubercular pits. Dorsum bare, 

 except a single row of short black cephalic hairs, to about 

 midway. Scutellum yellow (or brownish), on the basal lateral 

 edge a thick cluster of 1)]ack bristly hairs, thinning out to the 



