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

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Fig. 67. C. nigripes
Fig. 68.
C.frigidus
C. zinzalus
15 (14) Apical spot not widened beyond crossband and crossing no more than apical half of vein R4
(Fig. 67). Hind tibia entirely black and vertex (top of head) pruinose.
.
Apical spot widened beyond crossband and crossing more than apical half of vein R4 (Fig.
68). If hind tibia entirely black then vertex glossy black. 2 spp.
nigripes
16