Ceratopogonidae is a family of flies colloquially known as no-see-ums, sand flies or biting midges, generally 1–3 millimetres (1⁄16–1⁄8 in) in length. The family includes more than 5,000 species, distributed worldwide, apart from the Antarctic and the Arctic. Ceratopogonidae midges are also one of the best-studied cocoa pollinators.

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