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Robber Fly - Laphria fernaldi

Robber Fly - Laphria fernaldi
Mt. Herman, El Paso County, Colorado, USA
July 6, 2009
Size: ~18mm
Researching on the guide, I narrowed this down to Laphria fernaldi and L. engelhardti. According to this site:, L. fernaldi has the orange or red only on tergites 4&5 which appears to be the case on this one.
Very effective bee mimic, since many bumblebees in this area have the orange stripe as well.

After an e-mail exchange with Dr. Robert Cannings and Eric Fisher, I'm moving this to species. Eric feels that mine is fernaldi and that engelhardti generally has just a "hint" of red or orange on the abdomen.

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