External images For terms see Morphology of Diptera Wing length is 8.25–12.75 mm. Antennomere 3 brown-black. Arista plumose to tip. Tarsi 1 and 2 entirely yellow. Wing with diffusely bordered darkened median band and pterostigma four times as long as wide. Dimorphic (males with triangular abdomen, females with squarish abdomen). The male genitalia are figured by Hippa et al. (2001). The larva is figured by Hartley (1961).
Tapered Drone Fly (lat. Eristalis pertinax)
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