False Blister Beetle vs Agabus Arctic Diving Beetle

Side-by-side species comparison

Attribute False Blister Beetle Agabus Arctic Diving Beetle
Scientific Name Ischnomera cyanea Agabus arcticus
Order Coleoptera Coleoptera
Family Oedemeridae Dytiscidae
Size 8-12 mm 8-10 mm
Habitat Beaches & Coastal Tundra & Arctic
Diet Wood Feeders Omnivores
Regions Europe Scandinavia, Northern Russia, Northern Canada, Alaska
Conservation Least Concern Least Concern

False Blister Beetle

A metallic blue beetle that develops inside rotting wood near coastal areas.

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Did You Know?

Unlike true blister beetles it does not produce cantharidin.

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.