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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Flies (Diptera) » "Orthorrhapha" (Brachycera excluding Aschiza and Schizophora) » Asiloidea » Robber Flies (Asilidae) » Asilinae
Photo#70635
Robber Fly, - female
Copyright © 2006 Callen Harty

Robber Fly, - Female
Walking Iron County Park, near Mazomanie, Dane County, Wisconsin, USA
August 12, 2006
I believe this is a robber fly--Efferia aestuans (aestuans)--but am looking for verification. What it's holding down underneath itself I have no clue, though it looks like it may be some kind of grasshopper. They were plentiful in the field in which this was taken.
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Contributed by Callen Harty on 13 August, 2006 - 9:26pm
Last updated 17 February, 2007 - 9:08am

Robber
This is not Efferia. The ovipostitor is not quite right especially for aestuans. And the wing veins are wrong. It may be a female Neoitamus or Machimus. That could be a leafhopper species in its grasp.
… Herschel Raney, 13 August, 2006 - 10:08pm login or register to post comments

 
Robber
Thanks for the pointers. I'll look further.
… Callen Harty, 13 August, 2006 - 11:39pm login or register to post comments

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