OF WASHINGTON. 169 



marginal cell nearly as long as this cell, hind cross-vein about its length 

 from the small. Length 4.5 mm. 



^. Palpi slender, the scales and hairs black, the latter, like those of the 

 antennae, appear whitish in certain lights; proboscis reaching slightly 

 beyond apex of palpi. Mesonotum with a pair of subdorsal bare vittae on 

 its anterior two-thirds. Abdomen with a cross-band on the apices of ven 

 tral segments 3 to 7. Petiole of the first sub marginal cell longer than the 

 cell. Otherwise as in the female. 



Kaslo, British Columbia. One female and ten males bred 

 from the larvae, June 8 to 16, by Dr. H. G. Dyar ; also ninety 

 females and thirty-three males bred from the pupas, or captured, 

 by Dr. Dyar. 



Tvpe. No. 8030, U. S. National Museum. 



Although so similar to punctor and impiger in the adult state, 

 the larva is very different, as Dr. Dyar has pointed out to me. 



Family MYCETOPHILIDyE. 



Eugnoriste brevirostris, n. sp. 



Black, the stems of the halteres yellow. Head narrow and elongated, 

 about three times as long as wide, proboscis slightly longer than the head, 

 slender, horny, over six times as long as wide. Wings grayish, apex of 

 first vein a short distance before the forking of the fourth. Length 3.5 

 mm. 



Halfway House, Pike's Peak, Colorado, September. A female 

 specimen collected by Prof. T. D. A. Cockerell. 

 Type. No. 7944, U. S. National Museum. 



Acnemia varipennis, n. sp. 



Yellow, the antennae beyond the second joint, a circle around each 

 ocellus, a spot in front of each wing the breast largely, a streak at each 

 hind angle of the mesonotum, the margins of the scute Hum except at the 

 extreme apex, two longitudinal vittae on lower half of metanotum, a spot 

 in front of the halteres, the abdomen except bases of segments and the 

 genitalia, the tarsi except their bases, and the knobs of the halteres, black ; 

 a pair of widely separated brownish subdorsal vittae on the mesonotum; 

 hairs and bristles chiefly yellow. Wings grayish hyaline, tinged with 

 yellow along the costa, first section of third vein clouded with brown, a 

 brown cross-band extends from apex of marginal cell to apex of third pos 

 terior cell, becoming grayish posteriorly, a large brown spot along under 

 side of fifth vein before its apex. Length 5 mm. 



Mountains near Claremont, Cal. A female specimen collected 

 by Prof. C. F. Baker. 



Type. No. 8044, U. S. National Museum. 



