Male March Fly

Subject: Tiny Robber Fly?
Location: Andover, NJ
May 21, 2016 2:17 pm
I found several of these small (1/3 to 1/2 inch) flies which look like some sort of robber fly. I’ve just never seen a robber fly this small, so wondering if it is something else entirely. I’m in the far northern corner of NJ in a wooded area. These were found just at the edge of a shrubby area near the woods.
Any help you can give me will be much appreciated!
Signature: Deborah Bifulco

Male March Fly
Male March Fly

Dear Deborah,
This is not a Robber Fly.  It is a March Fly in the family Bibionidae, and it can be identified as a male because of its large eyes.  The eyes of the females are much smaller as you can see in this image of a pair of mating March Flies.  We believe your individual may be
Bibio albipennis based on this BugGuide image.

Male March Fly
Male March Fly

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