Sepsidae

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Sepsidae (ensign flies; order Diptera, suborder Cyclorrapha) Small family of flies in which the adults are small and often ant-like. The head may or may not have vibrissae, and the palps are reduced. The most characteristic feature of adult males is their habit of collecting on vegetation, where they walk about waving their wings, which accentuates the usual black, spotted wing-tips. These aggregations may be sexual in function. The larvae are saprophagous, and have been collected from dung. Adults feed on flowers. There are about 200 species, found throughout the world.

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