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Photo#245411
Robber Fly - Proctacanthus occidentalis

Robber Fly - Proctacanthus occidentalis
Bessie Butte Summit Trail, Deschutes National Forest, 8 miles southeast of Bend, Deschutes County, Oregon, USA
August 23, 2008
Size: 2"
An alternative view of same fly

Images of this individual: tag all
Robber Fly - Proctacanthus occidentalis Robber Fly - Proctacanthus occidentalis Robber Fly - Proctacanthus occidentalis

Beautiful shot
And we can narrow it further to subfamily Asilinae. It is not a Proctacanthus as far as I can tel by facial features. There are several Asilinae genera that I don't know with no eastern representatives. Does not look like Neoitamus or Neomochtherus. I will send link to Dr. Fisher for this western animal.

 
I think it probably is Procta
I think it probably is Proctacanthus occidentalis (though I wish the apex of the abdomen was in focus); if the fly is really at least 1 -1/2" long, this confirms ID.

 
Robber Fly
Thank you for helping to further narrow identification. I'm looking forward to Springtime and taking more bug photos.

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