The Tanypezidae are also known as the “stretched-foot flies”. It is a small family of true flies in the Acalyptrata that is found mostly in the New World, with the larger genus Neotanypeza (26 species) found in the Neotropics, and Tanypeza (2 species) found in North America, with one of these species extending into the Palaearctic. One species of Neotanypeza, N. dominicana, is an extinct species known from Dominican amber.
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-haired stripes and spots.
The Tanypezidae, known as the “stretched-foot flies”, are small family of acalyptrate Diptera (Schizophora, Brachycera). The 28 species are found mostly in the New World, divided between two genera: Tanypeza (2 species) is found in North America, with the type species (T. longimana Fallén) extending into the Palaearctic, and Neotanypeza (26 species) is neotropical in distribution and includes one species known only from Dominican amber from 17–20 million years ago, N. dominicana Lonsdale & Apigian.[3] 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),[4] who redefined the family and its genera, synonymizing all other neotropical tanypezid genera in Neotanypeza. Lonsdale (2014)[5] also provided a full catalogue for the family.
Species of Tanypezidae are relatively large and have semispherical heads 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, apical convergence of wing veins R4+5 and M1 occurs, and 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 T. longimana is known from low vegetation in humid deciduous woodlands, often around running water.
The Tanypezidae, known as the “stretched-foot flies”, are small family of acalyptrate Diptera (Schizophora, Brachycera). The 28 species are found mostly in the New World, divided between two genera: Tanypeza (2 species) is found in North America, with the type species (T. longimana Fallén) extending into the Palaearctic, and Neotanypeza (26 species) is neotropical in distribution and includes one species known only from Dominican amber from 17–20 million years ago, 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 semispherical heads 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, apical convergence of wing veins R4+5 and M1 occurs, and 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 T. longimana is known from low vegetation in humid deciduous woodlands, often around running water.
