Rough-Skinned Diving Beetle vs Delta Green Ground Beetle

Side-by-side species comparison

Attribute Rough-Skinned Diving Beetle Delta Green Ground Beetle
Scientific Name Dytiscus lapponicus Elaphrus viridis
Order Coleoptera Coleoptera
Family Dytiscidae Carabidae
Size 24-30 mm 0.6-0.8 cm
Habitat Mountains Wetlands
Diet Omnivores Predators
Regions Northern Europe, Northern Asia United States
Conservation Least Concern Endangered

Rough-Skinned Diving Beetle

A large diving beetle of northern and alpine regions across Europe and Asia. Both sexes have finely sculptured elytra, distinguishing it from the great diving beetle.

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Did You Know?

It is one of the few large predatory beetles adapted to survive the extreme cold of subarctic lakes.

Delta Green Ground Beetle

A small metallic green ground beetle found only near vernal pools in Solano County, California. It is threatened by urban development and habitat loss.

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Did You Know?

It is one of the rarest beetles in North America, known from fewer than five locations.