; order Diptera, suborder Nematocera)
Family of true flies in which the adults have long, six-segmented antennae. The legs are long and are readily discarded if trapped. The mesonotum has a V-shaped suture on the dorsum. The distal cell is present in the wing venation. The female ovipositor is prominent and sclerotized. The larvae live in the soil or among roots, or are aquatic, and are phytophagous or predacious. The family includes garden pests (leatherjackets) which destroy plant roots. The family has a world-wide distribution, and at least 13 500 species are known.
Subjects: Zoology and Animal Sciences.