1949 ] 
Hull — Syrphid Flies 
123 
ened in the middle and become obscurely reddish upon 
the outer fourth, but more clearly reddish towards the 
apex. The anterior tibiae are quite black except nar- 
rowly at the base where it is reddish brown to yellowish 
brown in color. The middle tibiae are yellowish brown 
becoming more reddish in color beyond the middle. The 
hind tibiae are somewhat flattened, slightly arcuate and 
entirely deep reddish brown; the apex is without spur, 
the anterior tarsi are blackish with the first and second 
segments narrowly brown at the apex. The middle and 
hind tarsi are light brownish red to yellowish brown ex- 
cept upon the last segment which is dark brown. Wings: 
tinged with pale brownish yellow throughout, the costal 
and subcostal and narrow posterior margin somewhat 
paler. There is a very strong stigmal cross vein present. 
Abdomen: black and almost entirely shining with strong 
brassy reflections especially upon the second, third and 
fourth segments. The first segment is opaque grey and 
there is in the middle of the base of the second segment 
a rather large, opaque black, diffusely margined triangle 
which is bordered laterally by a wide, diagonal stripe of 
opaque grey pollen fading out before reaching the apex 
of the segment. Posterior margins of third, fourth and 
fifth segments with quite narrow, laterally attenuate, 
linear, opaque black margins followed by even wider, 
opaque, pale yellow margins ; the pale yellow margin on 
the fourth segment is especially wide and conspicuous. 
Fifth segment shining black and somewhat brassy but 
this reflection is less pronounced than upon previous 
segments. 
Holotype : Female, Nova Teutonia, Brazil, Fritz Plau- 
mann. Jan. to April, 1948. 
Eristalis claripennis n. sp. 
A small species with opaque rusty brown scutellum, 
the eyes of the male narrowly separated and densely 
blackish pilose above. Related distantly to obsoleta 
Bigot. Length 8 mm. 
Male. Head: face and front black, largely shining, 
the sides of the face widely greyish yellow pubescent 
