8 PROCEEDINGS OF THE NATION^AL MUSEUM. vol. Gl. 



DOLICHOPUS FORTIS, new species. 



Male. — Front bronze green. Face brownish 3^ellow, glistening. 

 Palpi black. Antennae entirely black, of ordinary size. Orbital 

 cilia entirely black. 



Mesonotum and scutelliim dark bronze green, a little dusted, cop- 

 pery along the suture. Pleurae blackish-green, moderately dusted. 

 Cilia of the calypters black. Halteres yellow. x\bdomen rather 

 elongated, blackish-green with bronze reflections. Hypopygium 

 black, of moderate size, the lamellae whitish, oval, with a broad 

 black margin apically and below, the usual incisions and crooked 

 bristles at the apex. 



Legs black, the knees vei-y narrowly yellow; all the tarsi plain, 

 the front ones about one-fourth longer than their tibiae; hind fe- 

 mora with long cilia below, most of which appear pale in favorable 

 lights. 



Wings decidedly infuscated throughout, the hind cross-vein and 

 the curvature of the fourth vein slightly more so; costa with a short 

 enlargement at the tip of the first vein; outline of the wing of the 

 ordinary form. 



Length 5.4 mm. 



Described from one male taken by the writer at Healy, Alaska, 

 June 23, 1921. 



r?/;?e.— Male, Cat. No. 25188, U.S.N.M. 



Runs to paluster on page 10 in the analytical table of Bulletin 

 116; but is a more elongated species, much less green in color, with 

 long instead of rounded wings. 



DOLICHOPUS PENSUS, new species. 



Male. — Front green, not very shining. Face silvery, of moderate 

 width and rather long. Palpi yellow. Antennae black; very much 

 elongated, especially the third joint, which has a long slender point 

 extending much beyond the insertion of the arista; the first joint is 

 distinctly yellow below at the apex. Orbital cilia white except the 

 upper ones. The head is not so wide in proportion to its height as in 

 most species. 



Mesonotum and scutellum green, not very bright. Pleurae dull 

 green. Calypters with white cilia. Halteres yellow. Abdomen 

 rather bright green with the usual thin pruinosity on the sides. 

 Hypopygium rather large, the lamellae white with the usual black 

 border and witli the apex notched and bristly. 



Front coxae yellow; middle and hind coxae black except tips. 

 Front femora yellow with rather distinct but poorly defined dark 

 shading along the middle; middle femora yellow still with faint in- 

 dications of infuscation: the hind femora vellow on the basal half. 



