ZooL.— Vol. II.] WHEELER— DOLICHOPODID^. 6l 



latter considerably curved and terminating in a pointed and somewhat sinuate 

 projection. The whole leg is black except the distal half of the femur, which 

 is yellow. Middle femur ciliated with weak bristles on its lower side; middle 

 tibia with a row of blunt bristles on its under side passing distally into larger 

 bristles of the ordinary type. There is a long patch of short black spines on 

 the middle of the outer surface of the tibia and several bristles, smaller than 

 those of C. Philoctetes. The bristles which run along the concave surface of 

 the metatarsus are also weaker than the corresponding bristles in that spe- 

 cies. Hind legs yellow, the bases of the femora, the knees, the tips of the 

 tibiae and the tarsi from the tip of the first joint, blackened. Wings grayish 

 hyaline, with a distinct small black spot on the concavity in the distal seg- 

 ment of the fourth vein. Halteres and tegulas yellow, the latter with black 

 cilia. 



Female. Of about the same size as the male. The third antennal joint is 

 distinctly shorter and more rounded at the tip. The middle tibiae and tarsi 

 are plain and colored like the corresponding parts of the hind legs. In most 

 of my specimens the portions of the legs which are yellow in the males are 

 piceous in the females, but this may be due to poor preservation. 



Three males and seven females taken September 12, 

 1895, in the damp meadows of the Two-gwo-te-ee Pass, 

 Wyoming. 



61. Campsicnemus Thersites, sp. nov. 



Plate IV, Fig. 118. 



Male. Length 1.5-2 mm.; length of wing 2-2.5 "cavsx- Face very narrow, 

 covered with ochre-yellow dust. Antennae black, third joint small, pointed. 

 Front black with bluish reflections. Postocular cilia black above, whitish 

 below. Thorax, scutellum and abdomen shining black, the scutellum with 

 bluish, the abdomen with bronze-green reflections. Pleurae and coxae green- 

 ish black overlaid with white dust, fore pair of coxae in some specimens more 

 piceous or yellowish. Legs yellow, knees, tarsi and tips of tibiae black. In 

 many specimens the bases of the femora are more or less infuscated. Middle 

 tibiae greatly incrassated, flattened anteroposteriorly, but not twisted, broad- 

 est in the middle, deeply excised on the outer side of the distal half. 

 This side bears two clusters of small black spines, one smaller cluster at 

 the middle and a larger one in the excision below it, and a series of long 

 robust black spines which increase in length from the base of the tibia to the 

 excision. The lower surfaces of the middle tibia and femur bear series of 

 weak cilia. These become longer and stouter towards the distal end of the 

 tibia. Middle metatarsus thickened and bent in a complete semicircle. 

 Proximally the thickening is greatest and bears on its upper surface a number 

 of diverging, robust brisdes; distally the joint ends in a strong, somewhat 

 recurved projection. The upper and lower surfaces of the joint are fringed 

 with weaker bristles. Remaining tarsal joints plain. Wings grayish hyaline, 

 immaculate, with black veins. Halteres and tegulae yellow, the latter with 

 black cilia. 



