DIPTEKA MYCETOPHlLnXE. 591 



BRACHYPEZA Winnertz, 



BKACIIYPEZA ABITA. 

 PI. 3, Figs. 7, 8. 



Brachype:a abita Scudd., Rep. Progr. Geol. Surv. Can., 1875-1-7I',, -.Tl-.T^ (1877). 



This species is represented by a single specimen and its reverse in 

 which the wings and an obscure and detached fragment of the abdomen are 

 present. The wing appears to be devoid of markings. The auxiliary vein 

 does not fairly impinge upon the iirst longitudinal vein, but bends toward it 

 and then vanishes; in other respects the neuration of the base of the win-- 

 is precisely as figured l>v Winnertz for Brachypeza; so, too, are the origin, 

 course, and position of all the principal veins and the cross-vein, but the 

 branches of the tilth longitudinal vein unite perhaps a little farther from the 

 base, viz: scarce] \- nearer the base than the point of separation of the united 

 third and fourth longitudinal veins from the second; the sixth longitudinal 

 \<-in is perfectly straight, and terminates quite as far from the base of tin- 

 wing as the small transverse vein; the anal vein is regularly curved, about 

 as long as the sixth longitudinal vein, runs parallel to the border beside it, 

 and terminates on the lower margin. 



Length of wing, 4 mm ; breadth of same, 1.35 mni . 



Quesnel, British Columbia. One specimen, Nos. ."> and 16 (Dr. G. M. 

 Dawson, Geological Survey of Canada). 



BKACHYPE/A PKOCERA. 

 PI. :!, Fig. 14.- 



Brach<ji:a /irucera Scndd., Rep. Progr. Geol. Surv. Can., 1875-1876, '272 (1877). 



The single specimen of this species is in a very fair state of preservation. 

 almost the entire iieiiratioii of the wing> being preserved, as well as fra-- 

 inents of tlie body and other appendages. The wings are fuliginous, mon- 

 deeply next the costal border. The neiiration of the extreme l, a >e is lo>t, 

 and the remainder differs from that of B. abita only in the l.\vi-r half of 

 the \ving; the liranches of the fifth longitudinal vein unite nearer the ha^e 

 than in that species, resembling, in this respect, the illustration of lirachvpe/.a 

 given liy Wimiert/, ; the lower branch curves stronglv toward the tip, di\ 

 ing uim.Mially from the upper branch ; the sixth longitudinal vein i.-, straight, 



