AUT. -21. DOLICHOPOD FLIES TEOM ALASKA VanDUZEE. 3 



CAMPSICNEMUS DEGENER Wheeler. 



Campsicnenius deycncr Wheeleu, I'loo. Calif. Acad. Sci., vol. 2, p. oS, 1899. 

 Two males taken at Fairbanks. Alaska, July 1. Described from 

 California. 



CAMPSICNEMUS CALCARATUS. new species. 



Male. — Length 2.75 mm. Face, palpi, proboscis, and front blackish ; 

 eyes touching on the middle of the face. Antennae (fig. 6) black; 

 third joint small, al)out as long as Avide, rounded at tip, arista dorsal, 

 long and pointed. Orbital cilia minute, pale below. 



Thorax and abdomen bronze brown, dulled with gray pollen; 

 scutellum blue with two long marginal bristles. Ilypopygium small, 

 with no visible appendages, except one long and several short yel- 

 low hairs below\ 



Coxae, femora, tibiae and tarsi black, knees a little yellowish : fore 

 coxae with a row of four slender bristles near the tip. Middle and 

 hind femora each with a few black bristles below on apical half, those 

 on the middle pair twice as long as those on the posterior ones. 

 Middle tibiae slightly compressed, of nearlj'^ equal width throughout, 

 a little arcuated and then recurved at tip (fig. 4), fringed witli long 

 hairs and bristles, which appear yellow in certain lights. Middle 

 basitarsus curved, terminating in a horn-like point, the second joint 

 being inserted on the first some distance before its tip. Second joint 

 of hind tarsus longer than first. Halteres black. 



Wings dark gra3dsh, more brown in front; third and fourth veins 

 quite widely separated, parallel, the fourth ending just back of the 

 apex of the wing; anal angle prominent, the wing being of rather 

 equal width. 



Described from one male taken at Fairbanks, Alaska, July 1. 



Type.— Male, Cat. No. 25956, U.S.N.M. 



Tliis is something like thersites "VAHieeler, but difl'ers in having the 

 tibiae of different form, and the legs and feet wholly black, while in 

 thersites the legs and feet are largely yelloAv ; the middle basitarsus 

 is less bent in this form. 



CAMPSICNEMUS AMERICANUS. new species. 



Male. — Length, 2 mm. ; of wing. 2.5 mm. Face narrow, yellow 

 above the suture which divides it near apical fourth, this short lower 

 portion and the palpi being black and thickly covered with gray 

 Ijollen. Front blackish, dull. First antennal joint yellow, second 

 and third black; third nearly tw^ice as long as wide (fig. 5). rounded 

 at tip; arista dorsal, nearly as long as the height of its head, its tip 

 feathered with longer white hairs, giving it the appearance of hav- 

 ing the tip a little enlarged and white. LoAver orbital cilia quite long, 

 white. 



Thorax and abdomen bronze green, sometimes almost black: scutel- 

 lum bluish; hairs of the abdomen snuill and pale, bristles on hind 

 mariiins of seainei\ts black: fifth sojriiient considerably enlargtM? 



