South American Robber Fly vs Sonorensis Biting Midge

Side-by-side species comparison

Attribute South American Robber Fly Sonorensis Biting Midge
Scientific Name Microstylum magnum Culicoides sonorensis
Order Diptera Diptera
Family Asilidae Ceratopogonidae
Size 30-40 mm 1-3 mm
Habitat Grasslands Farmland
Diet Predators Blood Feeders
Regions South America, Central America North America, especially southwestern United States
Conservation Least Concern Least Concern

South American Robber Fly

A large, elongate robber fly from tropical regions with a slender abdomen and long spiny legs. It hunts from exposed perches and can catch large prey relative to its body size.

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Did You Know?

Some tropical Asilidae species are among the largest predatory flies in the world, rivaling small dragonflies in wingspan.

Sonorensis Biting Midge

A small biting midge that is the primary vector of bluetongue virus and epizootic hemorrhagic disease virus in North America. It breeds in muddy margins of dairy wastewater ponds and is most abundant in the southwestern United States. It is responsible for severe livestock disease outbreaks.

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Did You Know?

Epizootic hemorrhagic disease transmitted by this midge kills thousands of white-tailed deer across North America annually.