Pedilus Beetle vs Harris's Diving Beetle

Side-by-side species comparison

Attribute Pedilus Beetle Harris's Diving Beetle
Scientific Name Notoxus monoceros Dytiscus harrisii
Order Coleoptera Coleoptera
Family Anthicidae Dytiscidae
Size 3-5 mm 33-40 mm
Habitat Rivers & Streams Ponds & Lakes
Diet Detritivores Omnivores
Regions Europe North America
Conservation Least Concern Least Concern

Pedilus Beetle

A small ant-like beetle with a distinctive forward-pointing horn on the thorax. Found on sandy ground and under debris. The horn function is unknown but may be used in combat.

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Did You Know?

Males bear a prominent forward-pointing thoracic horn whose function remains a mystery to entomologists.

Harris's Diving Beetle

A large North American diving beetle found in cold, clear lakes and bog ponds. It is one of the largest diving beetles on the continent.

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Did You Know?

It can remain submerged for extended periods by trapping air under its elytra, which it uses like an external lung.