Triorla interrupta (Robber Fly) ♂.
 
 
 
Size: approx. 25 mm. Photo: 07/19/11, 10 am.


Triorla interrupta. This pretty big robber fly often kills even larger insect prey including grasshoppers and dragonflies. It likes open grassy terrain. This specimen has been identified as a male on the bug guide. 
 
 
bug guide (this photo):
http://bugguide.net/node/view/548299
Herschel Raney:
http://www.hr-rna.com/RNA/Rfly%20pages/Triorla%20page.htm