Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Microstylum morosum

Robber Flies
A collection of resources for robber flies. Includes many keys and a Catalogue of the Nearctic Species.

Featured Creatures: Robber Flies
Information on the robber flies of Florida, including an identification key.

University of Arkansas: Robber Flies
A collection of robber fly images with identifications.

Dikow T. (2001–2014) Asiloid Flies web-site

Flies of Illinois
Our own Angella Moorehouse has been photographing plants and bugs in Illinois for years and she has put together a free downloadable guide to many of the flies she has photographed in Illinois. You will likely find it useful throughout much of the Midwest and Northeast. Enjoy! Thank you, Angella!
arguably, world's most vibrant and influential forum, image gallery, and info resource on Diptera


Nearctic Diptera (Discover Life's IDnature guide)

Identification Key to the Common Forensically Important Adult Flies (Diptera) of Northern Kentucky
Information and keys to important forensic flies in Kentucky.

Includes nice illustrations of fly anatomy, key to calyptrate families, and a key to species of Calliphoridae.