Diptera Associated with Livestock Dung

Key to the Families of Diptera Associated with Cow Dung

Couplet 16

Either:	Or:
16a.   Base of wing with lower calypter large and obvious	16a'.   Base of wing with lower calypter small and rudimentary
16b.   Antennal pedicel with complete dorsal seam	16b'.   Antennal pedicel usually without complete dorsal seam
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First published on the Internet in 2000 by J.M. Cumming
Last updated 18 May 2006 by J.M. Cumming and G.D. Murray