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Photo#501999
Bee Fly - Poecilanthrax

Bee Fly - Poecilanthrax
In Westwood - elevation 5100ft, Lassen County, California, USA
Size: Wingspan about 31mm
Possibly Poecilanthrax arethusa? or Poecilanthrax willistonii? Or?
Any help with the correct ID appreciated - Thanks!

I think this is P. willistonii.


I am almost certain it is not P. arethusa.

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