2 PKOCEEDINGS OF THE NATIOiSTAL MUSEUM. voo. 63, 



DIAPHORUS BREVINERVIS, new species. 



Male. — Length, 2 mm. Face rather narrow with white pollen. 

 Palpi black, small. Front green, dulled with white pollen. Anten- 

 nae black; third joint small, somewhat conical and pointed at tip; 

 arista apical; its first joint is not cylindrical but a little spindle 

 shaped. Lateral and inferior orbital cilia white. 



Thorax and abdomen dark green, dulled with gray pollen, hairs of 

 the latter small, white. Hypopygium small, no bristles at tip ; there 

 appears to be a lamella-like brown appendage projecting backward, 

 which has several small bristles on its disk. 



Coxae, legs, and feet wholly black, knees narrowh^ yellowish. 

 Fore tarsi as long as their tibiae, first joint as long as the remaining 

 four taken together, pulvilli distinctly enlarged. Fore femora with 

 several bristles below near the tip. Middle tibiae with one slender 

 bristle near the base on anterior side ; hind tibiae with several small 

 bristles. Calj^pters, their cilia and the halteres. yellow. 



Wings tinged with brownish gray ; third and fourth veins parallel, 

 the latter ending in the apex of the wing, first vein reaching only 

 about one- fourth the distance to the tip of second; last section of 

 fifth vein nearly four times as long as the cross vein; anal angle 

 prominent, making the wing of rather equal width; it is not at all 

 wedge shaped. 



Female. — Face and front a little wider; antennae with the third 

 joint slightly smaller, arista apical; all tibiae yellow, still the hind 

 pair are a little inf uscated and black at tip ; hind tarsi wholly black ; 

 first joint of fore and middle tarsi yellow. Cilia of the calyptcrs 

 whitish. Wings grayish, first vein reaching slightly further than in 

 the male; last section of fifth vein as in the male. 



Described from one male taken at Fairbanks, Alaska, July 1 ; the 

 female was taken at Nenana, Alaska, June 28. 



Type.—M'ulQ. Cat. No. 25955, U.S.N.M. 



Although these were not taken together, I think there is no doubt 

 of their belonging to the same species, the shape of the third antennal 

 joint, general color, and venation being about alike in both specimens. 



Genus CAMPSICNEMUS Walker. 



Campsicnemus Walker, Insects in Brit. Museum, Diptera, vol. 2, p. 193, ISHl. — 



LoEW, Neue Beitr., vol. 5, p. 26, 1857; Smiths. Misc. Colls, No. 171, p. 193, 1864.— 



Wheei.eb. Proc. Calif., Ac:id. Sci., vol. 2, pp. 58-62, 1899. — VanDuzee, Ent. 



News. vol. 28, pp. 124-126, 1917.— Becker, Nova Acta, vol. 14, pt. 2, pp. 82-99, 



1918. 



CAMPSICNEMUS CLAUDICANS Loew. 



Campsicnemus claudicans Loew, Smiths. Misc. Colls, No. 171, p. 194. 



Three females were taken ; one at Anchorage, Alaska, June 11, one 

 at Healy, June 26. and one at Port Althorp, June 5. This was de- 

 scribed from Alaska. All the females I have seen have the legs more 

 infuscated than Doctor Loew's description would indicate, and the 

 fore coxae are almost wholly black. 



