Kwik-Key to Common Families of Diptera

Select "A" or "B" for your specimen:

A. There is only one “break” in the costal margin of the wing. This subcostal break (“sb”) is near the junction with the R₁ vein.

A: Family Chloropidae

B. There are two “breaks” in the costal margin of the wing: the humeral break (“hb”) and the subcostal break (“sb”).

B: Family Ephydridae

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