Subject: Unknown PA flies
Location: Pittsburgh, PA
May 28, 2012 8:51 am
So there are these flies in the back yard and we can’t figure out what they are. They look a bit like deer flies, but have this really bright yellow gold furry thorax. Then we found two engaged in — um — adult activities and it looks like the males and females have different coloring. They are about 3/4 inch long. Any idea what kind of flies these are? Thanks!
Signature: Jeff

Mating Golden Backed Snipe Flies

Hi Jeff,
Your photograph is of mating Golden Backed Snipe Flies,
Chrysopilus thoracicus, and each spring we get a few identification requests and they are often of mating pairs.  According to BugGuide:  “Life Cycle Details unknown. This fly is observed in early to mid-spring perched quietly on low vegetation in deciduous woodlands.”

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Location: Pennsylvania

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