Key to the Families of Diptera Associated with Cow Dung

Couplet 27

Either:	Or:
27a.   Arista distinctly plumose	27a'.   Arista micropubescent
27b.   Small yellow to brown coloured flies	27b'.   Small black generally dull-coloured flies
Drosophilidae	Go to 28

First published on the Internet in 2000 by J.M. Cumming
Last updated 18 May 2006 by J.M. Cumming and G.D. Murray