Fen Rove Beetle vs Formosan Rosalia

Side-by-side species comparison

Attribute Fen Rove Beetle Formosan Rosalia
Scientific Name Stenus providus Rosalia formosa
Order Coleoptera Coleoptera
Family Staphylinidae Cerambycidae
Size 3.5-4.5 mm 20-35 mm
Habitat Wetlands Forests
Diet Predators Sap Feeders
Regions Northern Europe Taiwan
Conservation Least Concern Near Threatened

Fen Rove Beetle

A tiny rove beetle of wetland margins with exceptionally large eyes for a beetle its size. Uses a retractable sticky labial pad to catch springtails. Confined to fen habitats.

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Did You Know?

Has proportionally the largest eyes of any British beetle relative to its body size.

Formosan Rosalia

A stunning cerambycid endemic to Taiwan with turquoise-blue elytra and black markings. It inhabits montane hardwood forests at elevations above 1000 meters. It is highly prized by collectors and rarely encountered in the wild.

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Did You Know?

This species appears on a Taiwanese postage stamp issued in 2010, highlighting its cultural significance.