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Photo#220391
What is this? - Urocerus gigas

What is this? - Urocerus gigas
Edmonton, Alberta, Canada
August 31, 2008

Urocerus gigas flavicornis (F
Urocerus gigas flavicornis (Fabricius)

Horntail Fly
Look for in Siricidae family.

 
Agreed.
It is actually a wasp, though. The epithet "fly" has historically been applied to several hymenopterans with resulting confusion. This is a female Urocerus gigas, a holarctic species (ranges over the entire northern hemisphere).

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