Formosan Rosalia vs Winter Firefly

Side-by-side species comparison

Attribute Formosan Rosalia Winter Firefly
Scientific Name Rosalia formosa Ellychnia corrusca
Order Coleoptera Coleoptera
Family Cerambycidae Lampyridae
Size 20-35 mm 10-14 mm
Habitat Forests Woodlands
Diet Sap Feeders Predators
Regions Taiwan Eastern North America
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.

Winter Firefly

A day-active firefly that does not produce light as an adult. It is commonly found on tree trunks during late winter and early spring in eastern North America.

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Did You Know?

Despite being a firefly, adults completely lack the ability to produce bioluminescence.