page_title: Bibionidae
section_title: Description
hierarchical_section_title: Bibionidae / Description
caption_attribution_description: English: cf. Bibio pomonae, Schwanheim Dune, Frankfurt/Main, Germany
context_page_description: The Bibionidae are a family of flies. About 650-700 species are known worldwide.
context_section_description: Bibionidae are medium-sized flies with a body length from 4.0 to 10.0 mm. The body is black, brown, or rusty, and thickset, with thick legs. The antennae are moniliform. The front tibiae bear large strong spurs or a circlet of spines. The tarsi are five-segmented and bear tarsal claws, pulvilli, and a well developed empodium. The wings have two basal cells (posterior basal wing cell and basal wing cell), but are without a discoidal wing cell. R4+5 is simple or branched; at most, only three branches of R developed. The leading edge wing veins are stronger than the weak veins of the trailing edge.
caption: Bibio pomonae: Note the stout body, short, thick antennae, the powerful femora and spined tibiae of the dichoptic female. The male is holoptic.
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