Lesser Silver Water Beetle vs Black Cocktail-Ant Rove Beetle

Side-by-side species comparison

Attribute Lesser Silver Water Beetle Black Cocktail-Ant Rove Beetle
Scientific Name Hydrochara flavipes Lomechusa pubicollis
Order Coleoptera Coleoptera
Family Hydrophilidae Staphylinidae
Size 12-16 mm 4-6 mm
Habitat Ponds & Lakes Woodlands
Diet Scavengers Omnivores
Regions East Asia Europe, Northern Asia
Conservation Least Concern Least Concern

Lesser Silver Water Beetle

A medium-sized water scavenger beetle found in still waters across East Asia. Its legs have distinctive yellowish tarsi.

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Did You Know?

It is commonly encountered in rice paddies where it helps break down organic matter in the flooded fields.

Black Cocktail-Ant Rove Beetle

A myrmecophilous rove beetle that lives inside ant nests. It secretes chemicals that trick ants into feeding and caring for it.

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Did You Know?

Its adoption glands produce substances so appealing to ants that they prioritize feeding the beetle over their own larvae.