Key to the Families of Diptera Associated with Cow Dung


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Diptera Associated with Livestock Dung

Either:	Or:
2a. Wing with two strong anal veins, A₁ and A₂, reaching wing margin	2a'. Wing with at least A₂ absent or faded out before reaching wing margin

2b. Legs long and slender	2b'. Legs variable

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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