Blera is primarily a North American genus, though there are 3 species from Europe. The genus is characterized by the following characters:
- face with distinct central knob, less developed in females; frons distinctly produced
- antennae shorter than head width, arista dorsal
- body covered long sometimes dense hairs
- legs simple bare and undeveloped metasternite
- short apical section of vein R <small>4+5</small>
The larvae are found in decaying heartwood in roots of trees and stumps.
There are keys to American and British species. external map
Species
- Blera ambigua <small>(Shiraki, 1968)</small>
- Blera analis <small>(Macquart, 1842)</small>
- Blera armillata <small>(Osten Sacken, 1875)</small>
- Blera badia <small>(Walker, 1849)</small>
- Blera chillcotti <small>Thompson, 2012</small>
- Blera confusa <small>Johnson, 1913</small>
- Blera eoa <small>(Stackelberg, 1928)</small>
- Blera equimacula <small>Huo, Ren & Zheng, 2007</small>
- Blera fallax <small>(Linnaeus, 1758)</small>
- Blera ferdinandi <small>(Hervé-Bazin, 1914)</small>
- Blera flukei <small>(Curran, 1953)</small>
- Blera garretti <small>(Curran, 1924)</small>
- Blera himalaya <small>Thompson, 2000</small>
- Blera humeralis <small>(Williston, 1882)</small>
- Blera japonica <small>(Shiraki, 1930)</small>
- Blera johnsoni <small>(Coquillett, 1894)</small>
- Blera kyotoensis <small>(Shiraki, 1952)</small>
- Blera lonigseta <small>Barkalov & Cheng, 2011</small>
- Blera metcalfi <small>(Curran, 1925)</small>
- Blera nigra <small>(Williston, 1887)</small>
- Blera nigrescens <small>Shiraki, 1968</small>
- Blera nigripes <small>(Curran, 1925)</small>
- Blera nitens <small>(Stackelberg, 1923)</small>
- Blera notata <small>(Wiedemann, 1830)</small>
- Blera ochrozona <small>(Stackelberg, 1928)</small>
- Blera pictipes <small>(Bigot, 1884)</small>
- Blera robusta <small>(Curran, 1922)</small>
- Blera scitula <small>(Williston, 1887)</small>
- Blera shirakii <small>Barkalov & Mutin, 1991</small>
- Blera umbratilis <small>(Williston, 1887)</small>
- Blera violovitshi <small>Mutin, 1991</small>
- Blera yudini <small>Barkalov, 1991</small>
<Gallery mode=packed> Image:Blera scitula 159321439.jpg|Western Wood Fly<br> Blera scitula Image:Blera humeralis 2.png|Yellow-legged Wood Fly <br>Blera humeralis image:Blera pictipes whole.png|The Painted Wood Fly <br>Blera pictipes Image:Painted Wood Fly - Blera pictipes (50343751071).jpg|Painted Wood Fly <br>Blera pictipes </Gallery>
References