1917] Van Duzee—New Diaphorus from the Western States 37 
fore tibize without bristles; bristle near the base of the middle 
tibize small; bristles of hind tibiz short but stout; fore and middle 
femora with a row of stout, bristle-lke hairs below their entire 
length; hind femora with long brown hairs; all tarsi with a few 
longer hairs at tip of fifth jomt, those of fore tarsi as long as that 
joint. Halteres yellow; tegule yellowish with more or less of a 
black border and black cilia. Wings tinged with brown, especially 
in front, sometimes yellow at the root; costa a little stouter beyond 
the tip of the first vein; first vein reaching about two fifths of the 
distance to the tip of the second vein; fourth vein ending in the 
apex of the wing. 
Described from two males; one taken in Oak Creek Canyon, 
Ariz. (6000 ft.), by F. H. Snow, to whom the species is dedicated. 
Type in the Kansas University Collection. Since returning this 
specimen I have received a specimen taken at Grant, Colo. (Alt. 
10,000 ft.), by L. O. Jackson, which I have used in completing the 
above description; this paratype was received from the U. 5. 
Dept. of Agriculture, Bureau of Biological Survey, Washington, 
D. C., and has been returned to them. 
Diaphorus sparsus sp. nov. 
Male: Length, 4mm. Eyes contiguous on the front; third an- 
tennal joint small, scarcely as long as wide, rather flattened in 
outline at base and tip; arista apical. Thorax and abdomen dark 
metallic green; base of abdominal segments and three indistinct and 
rather broken lines on the thorax coppery; pollen of thorax gray; 
bristles at tip of abdomen rather large. Coxze, femora and hind 
tibize and tarsi black; fore and middle tibize and their metatarsi 
yellow; middle tibiz in type specimen without bristles; pulvilli 
of all feet enlarged. Tegule and their cilia blackish; knobs of 
halteres pale yellow, their stems brownish. Wings tinged with 
brownish; veins dark brown. 
Described from one male from Virginia, labeled Glencarlyn to 
mouth 4-in Run, June 11, 1916 (W. L. McAtee). 
This species is very much like D. spectabilis Loew, but has the 
hind tibiz and tarsi deep, shining black; the pollen of the thorax 
is also gray, in spectabilis the pollen of the thorax is yellowish 
brown and all tibie are light yellow, at most brownish yellow. 
The name refers to the broken coppery lines on the thorax but 
