Agabus Arctic Diving Beetle vs Mountain Prosimulium

Side-by-side species comparison

Attribute Agabus Arctic Diving Beetle Mountain Prosimulium
Scientific Name Agabus arcticus Prosimulium mixtum
Order Coleoptera Diptera
Family Dytiscidae Simuliidae
Size 8-10 mm 2-4 mm
Habitat Tundra & Arctic Mountains
Diet Omnivores Omnivores
Regions Scandinavia, Northern Russia, Northern Canada, Alaska North America
Conservation Least Concern Least Concern

Agabus Arctic Diving Beetle

A cold-adapted diving beetle found in northern and alpine regions across the Holarctic. It thrives in frigid mountain streams and arctic tundra pools.

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Did You Know?

It can remain active in near-freezing water temperatures that would immobilize most other aquatic insects.

Mountain Prosimulium

An early-season black fly of cold mountain streams in North America. Larvae develop in small headwater streams during late winter and early spring.

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Did You Know?

Adults emerge so early in spring that they are often the first biting flies encountered by hikers each year.