Tabanidae of Canada, east of the Rocky Mountains 1: a ...

Chrysops ater Macquart
Length 7-10mm. An all black species with a hyaline wing apex and a black face with a
yellow pruinose stripe. Only likely to be confused with Chrysops carbonarius and Chrysops
mitis Osten Sacken. Reliably separated from C. carbonarius by wing pattern but when the
the base of wing cell cua1 is almost fully infuscated individuals may be indistinguishable
from C. mitis.
Abdomen plate. . Face plate. Distribution map.
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