50 BULLETIN 116, UNITED STATES NATIONAL MUSEUM. 



with the outer edge rounded, whitish with rather wide black border 

 on apical margin, where it is fringed with delicate dark hairs, a little 

 jagged and bristly on lower corner. 



Coxae, legs, and feet wholly black, fore coxae with white pollen 

 and little black hairs on their anterior surface. Middle and hind 

 femora each with one preapical bristle, the latter not ciliated below. 

 Hind tibiae thickened toward their tips; the glabrous stripe on their 

 upper surface can be seen as a shining line between the rows of 

 bristles, which are rather large, about eight in each row. Fore tarsi 

 nearly one and one-fourth times as long as their tibiae. First joint 

 as long as the three following taken together. Middle tarsi one and 

 a third times as long as their tibiae and hind tarsi one and a fourth 

 times; posterior basitarsi with about 12 large bristles. Calypters 

 and halteres yellow, the former with black cilia below and numerous 

 pale hairs or cilia above. 



Wings (fig. 12) grayish, tinged with brown in front of second vein, 

 sometimes the brown tint extends to the third vein; costa not en- 

 larged at tip of first vein; fourth vein with the last section consider- 

 ably bent near its middle; hind margin of wing a little indented at 

 tip of fifth vein; the anal angle but little developed, rounded. 



FemaZes.— Face wide as the front, grayish brown; hind basitarsi 

 with only a few bristles as usual; otherwise as in the male Middle 

 tibiae with one bristle below and their basitarsi with a large bristle 

 above. 



Described from several males and females. J. M. Aldrich took it 

 at Tennessee Pass, Colorado, July 25; Johnson. took it at Pine Lake, 

 Southern California; and E. P. Van Duzee took it at Talioe, California, 

 June 24, and at Huntington Lake, Fresno County, California, July 

 5-14, at 7,000 feet elevation. 



Holotype and allotype in the National Museum, and taken at 

 Tahoe, California. 



Type— Male, Cat. No. 22984, U.S.N.M,, from Colorado. 



No. 13. DOLICHOPUS KANSENSIS Aldrich. 



DoHchopus lansensis Aldrich, Kansas Univ. Quart., 1893, vol. 2, p. 8. 



The original description is as follows : 



Dark green, feet black, cilia of inferior orbit white, face wide. Face and lower 

 part of the front yellow pollinose, remainder of front dark green. Antennae black, 

 third joint only moderately large, with a short arista. Dorsum of thorax dark green, 

 pleurae black with but little dust. Tegulae [calypters] yellow with black cilia, 

 halteres yellow. Abdomen dark green, toward the tip more black-green. Hypopy- 

 gium black, the lamellae rounded, whitish ^vith a rather wide black border and small 

 bristles. Legs from coxae to tarsi wholly black, at the kneos with the faintest trace 

 of red. Fore tarsi over one and one-half times the length of the tibiae, middle tarsi 

 about one and one-fourth times. Hind tibiae incrassated; hind femora below mth 

 delicate blackish cilia of moderate length, wings almost hyaline; costa .■^lightly thick- 



