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

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Fig. 46. C. excitans . . Fig. 47. C. vittatus .
7 (1) Clypeus with yellow pruinose stripe (Fig. 46); clypeus usually black (yellow in discalis and
fulvaster). 10 spp.
Clypeus lacking pruinose stripe (Fig. 47); clypeus shiny yellow. 24 spp.
8
17