Formosan Rosalia vs Horntail Wasp

Side-by-side species comparison

Attribute Formosan Rosalia Horntail Wasp
Scientific Name Rosalia formosa Urocerus gigas
Order Coleoptera Hymenoptera
Family Cerambycidae Siricidae
Size 20-35 mm 25-40 mm
Habitat Forests Forests
Diet Sap Feeders Fungus Feeders
Regions Taiwan Europe, Asia
Conservation Near Threatened Least Concern

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.

Horntail Wasp

A large wood wasp that injects symbiotic fungus into trees along with its eggs.

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Did You Know?

The injected fungus softens the wood to make it digestible for the larvae.