Culicoides sonorensis

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Culicoides sonorensis feeds on blood through an artificial membrane in a mass reaing (click on image to enlarge it)
Author(s): Scott Bauer, USDA Agricultural Research Service
Source: Wikimedia Commons

Culicoides sonorensis Wirth & Jones, 1957

The biting midge is an efficient vector of the bluetongue virus as well as the epizootic hemorrhagic disease virus. These viruses infect sheep, cattle and other ruminants in North America, causing haemorrhagic diseases. The diseases are mainly found in southern parts of North America, but the distribution of C. sonorensis extends up to Canada.

C. sonorensis prefers to feed on ruminants and horses, but will also except a variety of other mammals. The main breeding site is the mud of the littoral zone of dairy waste-water holding ponds of commercial dairy farms which is heavily enriched with excrements.

Culicoides variipennis sonorensis