560 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 113 
MALE AND FEMALE.—Vertex and upper half of front dark brown to 
blackish, lower half of front dark orange to brown; back of head ash 
eray in upper half, becoming more yellowish below; antennae reddish 
yellow with upper half or more of third segment brownish; arista dark 
brown to black; face cheeks and palpi yellow; oral vibrissae strong, a 
single row of buccal setae; cheek-eye ratio from 0.40 to 0.50. 
Mesonotum grayish brown with 2 median dark brown vittae be- 
tween the dorsocentrals on each side of the median line, usually more 
distinct anteriorly; similar dark vitta-like areas near lateral margins 
of mesonotum; scutellum grayish brown; dorsocentrals becoming very 
weak anteriorly; pleura brown, becoming yellowish toward the pro- 
pleura; 2 propleural bristles, although 1 is usually weaker than the 
other; 1 sternopleural bristle. 
Legs yellowish, becoming darker distally. 
Wings hyaline with brownish tinge; costal bristles somewhat stronger 
than in other members of the genus. 
Abdomen dark brown, sometimes somewhat grayish or yellowish; 
a row of bristles along dorsal posterior margins of segments 2-5. 
Leneto.—4.5-5.0 mm. 
Distrisution.—Alaska, British Columbia, Montana, Manitoba; 
May-—September. 
Brotocy.—I have collected this species in traps baited with carrion 
and excrement. 
Neoleria ruficauda (Zetterstedt) 
Helomyza ruficauda Zetterstedt, 1847, p. 2456. 
Blepharoptera crassipes Loew, 1859, p. 68; 1862b, p. 128. 
Leria ruficauda (Zetterstedt), Schiner, 1864, p. 31. 
Leria flavicornis Pandellé, 1901, p. 351. 
Neoleria ruficauda (Zetterstedt), Czerny, 1924, p. 120; 1927a, p. 30.—Collin, 
1948, p. 243. 
In the U.S. National Museum are a male and a female of this 
species from Austria, determined by Czerny. They do not agree with 
any specimens which I have yet seen from North America. Czerny 
(1924) included North America in the distribution of the species, but 
I suspect this inclusion is based on the work of Aldrich and Darling- 
ton (1908). Aldrich and Darlington claimed the first published refer- 
ence to this species in North America; however, the specimens on which 
the record is based are in the U.S. National Museum and are Neoleria 
prominens (Becker). 
Johnson (1929) listed N. ruficauda (Zetterstedt) from Labrador. 
The European specimens in the U.S. National Museum have the 
mesonotum entirely grayish, with two faint vittae between the 
dorsocentrals near the middle of the mesonotum, but not anteriorly 
as in NV. fuscolinea (Garrett). 
