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

Chrysops excitans Walker
Length 9-12 mm. Usually readily recognizable by the combination of wing pattern (cells br
and bm about two-thirds infuscated, saturate crossband not reaching posterior wing
margin, lack of apical spot) and tergite 2 laterally orange-yellow with an inverted black V
leaving a large yellow triangle in the midline. However, some individuals superficially
resemble Chrysops dawsoni in having tergite 2 extensively blackened with the lateral
orange yellow patches and the midline triangle reduced.
Variations. Abdomen . plate. Face plate. Distribution map.
Back to Checklist. Back to Chrysops key