Blera (fly)

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 4+5

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 (Shiraki, 1968)
 * Blera analis (Macquart, 1842)
 * Blera armillata (Osten Sacken, 1875)
 * Blera badia (Walker, 1849)
 * Blera chillcotti Thompson, 2012
 * Blera confusa Johnson, 1913
 * Blera eoa (Stackelberg, 1928)
 * Blera equimacula Huo, Ren & Zheng, 2007
 * Blera fallax (Linnaeus, 1758)
 * Blera ferdinandi (Hervé-Bazin, 1914)
 * Blera flukei (Curran, 1953)
 * Blera garretti (Curran, 1924)
 * Blera himalaya Thompson, 2000
 * Blera humeralis (Williston, 1882)
 * Blera japonica (Shiraki, 1930)
 * Blera johnsoni (Coquillett, 1894)
 * Blera kyotoensis (Shiraki, 1952)
 * Blera lonigseta Barkalov & Cheng, 2011
 * Blera metcalfi (Curran, 1925)
 * Blera nigra (Williston, 1887)
 * Blera nigrescens Shiraki, 1968
 * Blera nigripes (Curran, 1925)
 * Blera nitens (Stackelberg, 1923)
 * Blera notata (Wiedemann, 1830)
 * Blera ochrozona (Stackelberg, 1928)
 * Blera pictipes (Bigot, 1884)
 * Blera robusta (Curran, 1922)
 * Blera scitula (Williston, 1887)
 * Blera shirakii Barkalov & Mutin, 1991
 * Blera umbratilis (Williston, 1887)
 * Blera violovitshi Mutin, 1991
 * Blera yudini Barkalov, 1991

 Image:Blera scitula 159321439.jpg|Western Wood Fly Blera scitula Image:Blera humeralis 2.png|Yellow-legged Wood Fly Blera humeralis image:Blera pictipes whole.png|The Painted Wood Fly Blera pictipes Image:Painted Wood Fly - Blera pictipes (50343751071).jpg|Painted Wood Fly Blera pictipes 