Diving Beetle vs Dimple-back Ground Beetle

Side-by-side species comparison

Attribute Diving Beetle Dimple-back Ground Beetle
Scientific Name Dytiscus marginalis Elaphrus riparius
Order Coleoptera Coleoptera
Family Dytiscidae Carabidae
Size 27-35 mm 6-9 mm
Habitat Rivers & Streams Ponds & Lakes
Diet Predators Predators
Regions Europe, Asia Europe, northern Asia, North America
Conservation Least Concern Least Concern

Diving Beetle

A large, streamlined aquatic beetle with an olive-green body bordered in yellow. It carries an air bubble under its elytra and is a voracious underwater predator.

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Did You Know?

Great diving beetles can stay submerged for extended periods by trapping a silvery air bubble under their wing covers that functions like a gill.

Dimple-back Ground Beetle

A small, fast-running beetle with distinctive cup-shaped depressions on its elytra that create a dimpled appearance. It has iridescent bronze-green coloring and runs on wet mud.

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Did You Know?

Each dimple on its elytra contains a raised center that creates a mirror-like reflection, giving the beetle a uniquely textured and sparkling appearance when viewed up close.