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

Chrysops calvus Pechuman & Teskey
Length 7-10 mm. An all black species with a hyaline wing apex (cell r1 along costa rarely
smoky-tinged). Readily separated from other all black species, except C. niger Macquart,
by the combination of a yellow clypeus without a pruinose stripe and the completely
hyaline wing cell bm. It can be separated from Chrysops niger by the intensity of the
thoracic sublateral stripes, the shiny vertex and eye pattern (see key).
Abdomen plate. Face plate. Distribution map.
Back to Checklist. Back to Chrysops key.
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