See closeup images in Morphbank of morphological features of these flies!
One of the most exciting new tools illustrating the external morphology of flies debuted at CSIRO in Canberra Australia. Sponsored by the Australian Biological Research Study (ABRS) as part of its funding for an interactive key to the fly families of Australia, this self-guided tour provides an illustrated glossary and unique look at the transformational homologies (how the same structure changes) among four diverse groups of flies.
This tool requires a Flash plug-in for your browser and broadband access is required. Go to the Anatomical Atlas of Flies.
Morphological description in British Insects the Families of Diptera (Watson & Dallwitz 2003. Latest revision 25 November 2008)