Biting Midge (No-See-Um) vs High-altitude Midge

Side-by-side species comparison

Attribute Biting Midge (No-See-Um) High-altitude Midge
Scientific Name Culicoides imicola Diamesa latitarsis
Order Diptera Diptera
Family Ceratopogonidae Chironomidae
Size 1-3 mm 2-4 mm body length
Habitat Underground Mountains
Diet Blood Feeders Omnivores
Regions Africa, Middle East, southern Europe, Asia Alps, Carpathians, Scandinavia
Conservation Least Concern Least Concern

Biting Midge (No-See-Um)

A tiny biting midge that is the primary Old World vector of bluetongue virus and African horse sickness virus. It breeds in moist, organically enriched soil and is crepuscular, biting at dawn and dusk. Its northward spread into Europe has introduced bluetongue to previously unaffected areas.

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Did You Know?

Climate change has allowed this midge to expand northward into Europe, bringing bluetongue disease to countries that had never experienced it.

High-altitude Midge

A small, dark midge whose larvae inhabit the coldest alpine streams. It has unusually broad tarsi adapted for walking on wet rocks.

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Did You Know?

Its broad feet allow it to grip wet rocks in fast-flowing glacial streams.