Promachus rufipes

Robber Fly Born Identities

I posted an Alert over the weekend about robber flies (family Asilidae). This family of highly proficient predatory flies includes so-called "giant robber flies" (genus Promachus). I had the mistaken belief that the most common member of the giant robber fly genus found in Ohio is P. rufipes (Fabricius), the so-called Red-Footed Cannibalfly. However, thanks to BYGL-reader Tim Turner, I learned that we have another giant in our midst that we must consider when snapping pictures for BYGL Alerts.
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Authors
Joe Boggs