Arctic Chironomid Midge vs Elongate Paederine

Side-by-side species comparison

Attribute Arctic Chironomid Midge Elongate Paederine
Scientific Name Diamesa mendotae Lathrobium elongatum
Order Diptera Coleoptera
Family Chironomidae Staphylinidae
Size 3-6 mm 7-9 mm
Habitat Rivers & Streams Rivers & Streams
Diet Detritivores Root Feeders
Regions Arctic Canada, Alaska, Greenland, Scandinavia, alpine regions worldwide Europe
Conservation Least Concern Least Concern

Arctic Chironomid Midge

A slender, non-biting midge with long legs and feathery antennae in males. Larvae are among the first invertebrates to colonize glacial meltwater streams. Adults can be active at temperatures just above freezing.

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Did You Know?

Diamesa midges can fly and mate at temperatures as low as minus 6 degrees Celsius, making them among the most cold-tolerant flying insects.

Elongate Paederine

A very slender, reddish-brown paederine rove beetle that lives deep within waterlogged soils near streams. Its extremely narrow body is adapted for burrowing through saturated soil.

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Did You Know?

This beetle can survive prolonged submersion in water, breathing through a plastron of air trapped by microscopic hairs on its body surface.