Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Robber flies - Machimus virginicus - male - female

Robber flies - Machimus virginicus - Male Female
Harms Woods Forest Preserve, Glenview, Cook County, Illinois, USA
July 2, 2007
Size: ~13mm
Found these medium sized robbers in an open sunny spot in the oak woods. We don't know which image is better for identification, feel free to frass the less useful one.

Moved from Robber Flies.