210 BULLETIN IK), UNITED STATES NATIONAL MUSEUM. 



bristle above near apical fourth. Hind tarsi wholly black. Calypters 

 and haltorcs yellow, the latter ciliated with black. 



Wings (fig. 150) grayish; costa not thickened at tip of first vein; 

 last section of fourth vem a little bent before its middle; hind margin 

 of whig scarcely indented at tip of fifth vein, with a slight sinus 

 between the tips of fifth and sixth veins so as to form a broad but 

 not conspicuous lobe at tip of sixth vem and the anal angle, which is 

 ])rominent; wmg of somewhat equal width. 



Female. — Face wide, grayish; fore tarsi plam, a little longer than 

 their tibiae, becommg black toward their tips, first joint nearly as 

 long as the three following joints taken together, fifth joint a little 

 longer than fourth; wmgs rather evenly rounded on the hind margin. 



Described from many specimens. C. W. Metz took it at Sheridan, 

 Wyoming, m July; C. F. Baker took it in Colorado; A. L. Melander 

 took it at Kamiac Butte, Washington, and at Gardiner Valley, 

 Montana, August 20, 1918. 



Holotype and allotype hi the United States National Museum taken 

 in Colorado. 



Tj/p^.— Male, Cat. No. 2.S041, U.S.N.M. 



No. 151. DOUCHOPUS COMPLETUS, new species. 



JfaZf.— Length 5-6 mm.; of wing 5-5.5 mm. Face wide, a little 

 narrowed below, yellowish gray, sometimes ocher yellow, more white 

 below. Front green, dulled with gray pollen. First antennal joint 

 yellow, sometimes a little brownish on upper edge; second and third 

 joints black, the latter somewhat conical in outline, slightly longer 

 than wide, obtusely pointed at tip. Lateral and inferior orbital cilia 

 pale yellowish, about nine of the upper ciha on each side black. 



Thorax bronze brown with more or less green reflections; dorsum 

 dulled with thick yellowish gray jwUen, which is always gray in the 

 front and sometimes quite gray on the disk but usually decidedlj^ 

 yellowish; pleurae dulled with white pollen. Abdomen green with 

 narrow black incism*es; the white pollen on its sides abundant and 

 extending upon the dorsum. Hypopygium black, its lamellae rather 

 large, somewhat oval but narrowing into the stem, about twice as 

 long as wide, white with a black border, which is wide on apical, 

 narrow on upper margin, jagged and bristly on lower half of apical 

 margin, fringed above with little black hairs, below with a few small 

 brown hairs. 



Fore coxae 3^ellow, a little blackened at base, their anterior surface 

 with little black hairs on apical two-thirds, which become minute 

 and leave a nearly bare space below the black base. Femora and 

 tibiae yellow. Middle and hind femora each with one preapical 

 bristle, the latter without cilia below, but with the little black hairs 

 on their sides reaching the lower edge so as to leave scarcely a trace 



