Ormia is a small genus of nocturnal flies in the family Tachinidae, that are parasitoids of katydids and crickets.
Flies in this genus have become model organisms in sound localization experiments because of their "ears", which are complex structures inside the fly's prothorax near the bases of the front legs. The most common and widespread species, Ormia ochracea, has been the center of this research.
Species Ormia aldrichi Séguy, 1925 Ormia australis (Townsend, 1911) Ormia bilimekii (Brauer & von Berganstamm, 1889) Ormia brevicornis Townsend, 1919 Ormia carreirai Tavares, 1965 Ormia crespoi Tavares, 1965 Ormia depleta (Wiedemann, 1830) Ormia dominicana Townsend, 1919 Ormia guianica Curran, 1934 Ormia lenkoi Tavares, 1965 Ormia lenti Tavares, 1965 Ormia lineifrons Sabrosky, 1953 Ormia lopesi Tavares, 1962 Ormia mendesi Tavares, 1965 Ormia nocturna Curran, 1934 Ormia nuttingi (Sabrosky, 1953) Ormia ochracea (Bigot, 1889) Ormia pellucida Séguy, 1925 Ormia punctata Robineau-Desvoidy, 1830 Ormia rachoui Tavares, 1962 Ormia reinhardi (Sabrosky, 1953) Ormia rosenoi (Tavares, 1965) Ormia rufa (Wulp, 1890) Ormia serrei Séguy, 1925 Ormia tarsalis Séguy, 1925 Ormia wolcotti Sabrosky, 1953 Ormia wygodzinskyi Tavares, 1965
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