Biting Midge (No-See-Um) vs Asian Multicolored Lady Beetle

Side-by-side species comparison

Attribute Biting Midge (No-See-Um) Asian Multicolored Lady Beetle
Scientific Name Culicoides imicola Harmonia axyridis
Order Diptera Coleoptera
Family Ceratopogonidae Coccinellidae
Size 1-3 mm 5-8 mm
Habitat Underground Underground
Diet Blood Feeders Omnivores
Regions Africa, Middle East, southern Europe, Asia East Asia; invasive worldwide
Conservation Least Concern Not Evaluated

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.

Asian Multicolored Lady Beetle

A highly variable ladybird ranging from orange with many spots to solid black. Originally released for biocontrol, it is now invasive worldwide.

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Did You Know?

It aggregates in enormous numbers on buildings in autumn, sometimes numbering in the thousands.