October 8, 2009
I believe this is a robber fly but would like to get your expert opinion. I have not seen one with green eyes.
Flower Mound, Denton County, Texas
Dear m zapata,
Yes, this is a Robber Fly. We are nearly certain it is a Hanging Thief in the genus Diogmites. Though it does not look like an exact match, it does resemble Diogmites discolor which is pictured on BugGuide. We will check with Eric Eaton to see if he can identify the species. Your photos are stunning and this is an exquisite creature.
Update from Eric Eaton
No, I don’t know robber flies that well, but if it is not a species of Diogmites then it is certainly a closely-related genus.