Ant-Nest Rove Beetle vs Bates' Rosalia

Side-by-side species comparison

Attribute Ant-Nest Rove Beetle Bates' Rosalia
Scientific Name Atemeles emarginatus Rosalia batesi
Order Coleoptera Coleoptera
Family Staphylinidae Cerambycidae
Size 5-7 mm 18-30 mm
Habitat Woodlands Forests
Diet Omnivores Wood Feeders
Regions Central Europe Japan (Honshu, Shikoku, Kyushu)
Conservation Least Concern Near Threatened

Ant-Nest Rove Beetle

A small, amber-brown rove beetle that parasitizes two different ant species during its life cycle. Larvae develop in Formica nests and adults move to Myrmica nests.

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Did You Know?

It switches host ant species seasonally, overwintering with Myrmica ants and breeding in Formica nests in summer.

Bates' Rosalia

A rare and beautiful longhorn beetle with pale lavender-grey elytra and contrasting black spots, found in the temperate forests of Japan. It is named after the famous naturalist Henry Walter Bates. Adults appear briefly in midsummer.

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Did You Know?

Despite being the subject of intense collector interest, this species remains poorly studied in the wild.