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The Tanypezidae are also known as the “stretched-foot flies”, and is a small family of Acalyptrate Diptera (Schizophora, Brachycera). There are 28 species that are found mostly in the New World, divided between two genera: 1) ''Tanypeza'' (2 species) is found in North America, with the type species (''T. longimana'' Fallén) extending into the Palaearctic; 2) ''Neotanypeza'' (26 species) is Neotropical in distribution and includes one species known only from Dominican amber from 17–20 mya, ''N. dominicana'' Lonsdale & Apigian. This distribution contrasts that of its sister-family, the Strongylophthalmyiidae, which is mostly east Asian in distribution. The family was recently treated by Lonsdale (2013), who redefined the family and its genera, synonymizing all other neotropical tanypezid genera in ''Neotanypeza''. Lonsdale (2014) also provided a full catalogue for the family. Species of Tanypezidae are relatively large, and have a semi-spherical head and stout bodies that are perched atop long, thin legs, the latter of which have sometimes allied them with the families Neriidae and Micropezidae. The head and thorax are also often very dark with contrasting silver (sometimes golden)-haired stripes and spots. Furthermore, there is also apical convergence of wing veins R4+5 and M1, no vibrissae, setulae on the upper surface of vein R1, and a large, flat “ocellar disc behind the ocelli. Little is known of the biology of tanypezid species, but ''Tanypeza longimana'' is known from low vegetation in humid deciduous woodlands, often around running water. References: ==External links== *(Family Tanypezidae at EOL ) *(Diptera.info ) images *(Wing venation ) *(Picture of a ''Tanypeza sp.'' ) *World list 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tanypezidae」の詳細全文を読む スポンサード リンク
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