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Photo#81750
March Fly - Penthetria heteroptera - male

March Fly - Penthetria heteroptera - Male
Cross Plains, Dane County, Wisconsin, USA
October 5, 2006
I thought this might be a Robber Fly but I'm not sure. The photo was taken in the shade and the fly was very black. At first I thought it was a spider wasp but the body shape was different and it remained very still, unlike the spider wasps.

Moved
Moved from Bibio.

Bibionidae
this is a march fly in the family Bibionidae (Diptera). It is a male (since it has those large holoptic eyes) and is probably in the genus Bibio

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