1918] Dipterous Genus Drapetis Meigen 197 



fourth vein with a downward curve in the middle of the wing, then 

 straight, the second, third and fourth sections of the costa proportioned 

 1.2 : 1.8 : 1, submarginal cell as wide as the marginal and the first 

 posterior opposite the ends of the first and second veins respectively, 

 anterior cross-vein near the middle of the second basal cell, outer 

 sections of the fourth vein proportioned 1 : (i, of the fifth vein equal, 

 marginal cilia uniformly short. 



Two specimens: Pullman and Almota, Washington, June. 

 A specimen in the U. S. National Museum from South Fork, 

 British Columbia, has the third vein a little closer to the fourth. 



Drapetis trichura, sp. no v. 



cf. Length 1.4 mm. Black, legs yellowish, hairs black and abun- 

 dant, the last tergite, apex of hypopygium and of the apical lamella 

 with numerous bristly hairs. Front V-shaped, eyes nearly meeting just 

 above the antennae and on the middle of the face; cheeks narrow; 

 vertical and ocellar bristles short, upper occiput setulose; antennae 

 ascending, short, black, no seta beneath, the third joint not longer than 

 broad, ovate, with a subterminal arista nearly bare and measuring two 

 and one-half times the antennal length ; palpi white and with straggling 

 white hairs, proboscis very short. Mesonotum shining, densely hairy, 

 about ten rows of setulee between the dorsocentral rows; no humeral, 

 three notopleural, two dorsocentral, four scutellar bristles; abdomen 

 opaque blackish, hypopygium polished jet black. Legs short, simple, 

 without true bristles on the femora or tibiae, no apical spur on the hind 

 tibiae. Halteres blackish. Wings hyaline, the third vein with a strong 

 anterior curve, fourth vein nearly straight but with a slight posterior 

 curve at the middle of the wing, the submarginal cell opposite the end 

 of the first vein two-thirds as wide as the marginal, and at the end of the 

 second vein two-thirds as wide as the first posterior cell, anterior cross- 

 vein at two-thirds the length of the second basal cell, the outer two 

 sections of the fourth vein proportioned 1 : 10, of the fifth vein equal, 

 costa and hind margin uniformly short-ciliate. 



One specimen: Austin, Texas. 



Eudrapetis armata, sp. nov. 

 Length l.S mm. Black, shining, with black legs, the femora with a 

 single preapical bristle, front femora cf above along the middle with a 

 group of about six spines, reduced in the 9 to one or two, hind tibiae 

 with two short extensor bristles located at the middle and about half 

 way to the tip, the apical spur small. Front subshining, at the bottom 

 two-thirds as wide as the second antennal joint, face half as broad as 

 this joint, its sides diverging below, subshining black, cheeks broader 

 behind where they are about one-fifth the eye-height; palpi black but 

 the front surface white pruinose, the apical hair black, proboscis black; 

 antennas elongate, ascending, the second joint with a seta beneath, the 

 third joint lanceolate, about twice as long as broad, its terminal arista 

 rather heavy with close short pubescence, measuring one and two thirds 



