Semi-aquatic-insects
Guides
Dolichopodidae
long-legged flies, longlegged flies
Dolichopodidae, the long-legged flies, is a large cosmopolitan family of true flies (Diptera) comprising over 8,000 described species in approximately 250 genera. Members are typically small (1–10 mm), often metallic green, blue, or bronze, with characteristically long and slender legs. Adults are predominantly predatory on small invertebrates. The family is particularly diverse in North America, with nearly 60 genera and about 1,300 species. Many species inhabit moist environments near water margins, though others occupy terrestrial habitats including tree trunks and foliage.