1947] 
Hull — Syrpliid Flies 
235 
sepia brown pile, the remainder of these tarsi light brown- 
ish yellow with golden pile. Wings: dark sepia brown 
throughout, the pterostigma and the basal portion of the 
marginal cell a little bit darker. Alulae well-developed, 
long and narrow. 
Female. Similar to the male, the vertex, however, is 
not especially raised; the sides of the front are also dif- 
fusely brownish yellow, the middle dark brown pollinose ; 
the first two segments of the antennae are reddish brown 
in color, rather darker than in the male. Thorax: the 
mesonotum is bright coppery violaceous in color, the 
widely separated yellowish brown vittae are somewhat 
more narrow, the lateral margin a little more yellowish ; 
the light colored areas of the pleura are more yellowish 
and extend across the pteropleura and include much of 
the metapleura. The squamae are distinctly yellowish 
brown. The scutellum is lighter in color than in the 
male, is brownish yellow especially around the margins 
and the base ; its pile is also sparse but is shorter ; there 
is no ventral fringe. Abdomen: much wider and even 
more flattened than in the male ; the sides of the fifth and 
sixth segments are somewhat emarginate ; the second seg- 
ment is almost rectangular, but is a little wider at the 
apex than at the base. The fourth segment has parallel 
sides. The apical portion of the abdomen is considerably 
wider than in the male ; the second segment is also wider ; 
the spots upon the second segment are linear, upon the 
third segment they are very short oval or subcircular but 
irregular and diffuse ; on the fourth segment the spots are 
linear, smaller and much more obscure ; on the fifth seg- 
ment there is a trace of linear, yellowish brown spots. 
Legs similar to the male; the wings are similar to the 
male, quite dark, the whole marginal and submarginal 
cells slightly darker than the posterior part of the wings ; 
there is a faint streak of light color in the costal cell and 
along the base of the vena spuria. These streaks may be 
abberant. 
Holotype : a male, Villa Rica, Paraguay, September 
1938 ; F. Schade ; allotype : a female, same locality, Feb- 
ruary 1940; F. Schade. There are two paratype males, 
