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Project Noah Nature School
Unidentified robber fly
Resort trail
Spotted on Aug 1, 2013
Submitted on Mar 17, 2014
2 Comments
Robber Flies are always tough as there are so many species. However I wonder if it could be Efferia tricella. See http://bugguide.net/node/view/235545 and read the discussion on http://bugguide.net/node/view/59806/bgpa.... Hope this helps. This particular records comes from Arizona as well so it may be pertinent.
I hope you get an ID because I have one just like this one. Great shot Aaron.