1926 J New Species of North American Dolichopodidce 
49 
fore coxa, but without a black bristle; dorsocentral bristle next 
to the scutellum large, the rest very small; scutellum with two 
pair of bristles. Abdomen coppery with the hind margins of the 
segments black, its hairs white, short on the dorsum, long on the 
sides. Hypopygium concealed, with a pair of long black ap- 
pendages projecting downward with a small tip turned forward, 
fringed with small white hairs. 
Fore coxae dark green, their long hair and the pollen silvery 
white; middle and hind coxae black. All femora and tibiae dark 
green with white hair; fore femora thickened, their tips narrowed; 
they have eight short, blunt spines before the middle on lower- 
surface, the first placed a considerable distance from base of 
femora; posterior femora with a conspicuous bend near the base, 
the concave side down, beyond this bend they are a little thick- 
ened. Fore tibiae with a row of minute spines on their whole 
lower edge; middle tibiae with two minute black bristles above 
near the base, posterior pair with several very small ones on 
upper surface. Tarsi black with white hair, first four joints of 
middle and hind tarsi with minute black spines below; fifth 
joint of middle tarsi slightly widened. Joints of fore tarsi as 
25-18-13-9-12; of middle ones as 38-18-13-8-12; those of posterior 
pair as 50-25-20-12-14. Calypters and halteres yellow, . the 
former with white cilia. 
Wings with a yellowish sheen on anterior half, posterior 
half more gray; costa and veins bright yellow, veins on posterior 
half usually more brownish. 
Female: Length 4.5 mm.; of wing 5 mm. Face and front 
very wide, covered with yellowish pollen, the bronze ground 
color showing through, except on lower portion, the face long, 
reaching nearly to the lower corner of the eyes; the black cilia 
reach down to the middle of the eye ; pollen on the dorsum of the 
thorax more dense than in the male, fore coxae with shorter hair; 
fore femora with two rows of spines below for nearly their whole 
length; posterior femora not bent at base; all tibiae and middle 
and hind femora with a few scattering black bristles. Wings, 
hairs of the abdomen, legs and feet as in the male. 
Described from one male and six females which I have 
taken, the male and two females (type and allotype) taken at 
