382 THE CANADIAN ENTOMOLOGIST 



short, pale. Legs with the coxae pale yellowish brown; trochanters 

 and femora dull yellow, the tips of the latter narrowly dark brown ; 

 tibiae yellowish brown, passing into dark brown at about mid- 

 length; tarsi brown. Wings strongly tinged with gray, sparsely 

 marked with brown and subhyaline; small brown spots and seams 

 at the arculus, origin of the sector, along the cord, and the outer 

 end of cell 1st M^; stigma pale, rectangular; subhyaline drops as 

 follows: before and beyond the stigma; end of cell R^; cell 1st M^; 

 a few small droplets in cells ilf, Cu, and 1st A. Venation: Sc short, 

 ending opposite the origin of the sector; Sc^ slightly retracted from 

 the tip of Sc^; Rs long, strongly arcuated at origin, about twice 

 the length of the deflection of R ^+^• r at the tip of R^; cell 1st M^ 

 very long, closed; outer deflection of M^ about twice the length 

 of m; M^ beyond m but little longer than that portion of the vein 

 before m; basal deflection of Cu^ just beyond the fork of M. 



Abdominal tergites dark brown, the caudal margins of the 

 segments pale; sternites pale brown. Hypopygium with the 

 pleurites long and slender, about twice the length of the appendages ; 

 ventral pleural appendage terminating in a slightly curved cylin- 

 drical point. 



Habitat. — ^California. 



Holotype.— d', Alameda, Cal., May 26, 1915, (M. C. Van 

 Duzee) . 



This fly bears a superficial resemblance to Rhipidia fidelis 

 O. S., but may readily be distinguished by the structural details. 



Erioptera (Erioptera) pilipennis, new species. 



Related to E. laticeps Alex.; wings with a sparse pubescence 

 in the apical cells. 



Female. — Length 3.2 mm.; wing 5 mm. 



Rostrum, palpi and antennae black. Head dark gray. 



Thorax dark gray, the pleura a little brighter. Halteres pale. 

 Legs with the coxae and trochanters brownish yellow; femora dark 

 brown, more yellowish basally; tibiae and tarsi dark. Wings 

 grayish; veins dark brown; a distinct though sparse pubescence 

 in the centres of the apical cells from R^ to Cw\ inclusive. Ven- 

 ation: almost as in E. laticeps but Rs longer; i^^+a longer; r 



