Borneo Three-horned Beetle vs Question Mark Butterfly

Side-by-side species comparison

Attribute Borneo Three-horned Beetle Question Mark Butterfly
Scientific Name Chalcosoma caucasus Polygonia interrogationis
Order Coleoptera Lepidoptera
Family Dynastinae Nymphalidae
Size 60-135 mm 45-76 mm wingspan
Habitat Forests Woodlands
Diet Sap Feeders Sap Feeders
Regions Malaysia, Indonesia, Thailand North America
Conservation Not Evaluated Least Concern

Borneo Three-horned Beetle

Among the longest beetles in Asia, with three powerful horns and a metallic green-black sheen. Males engage in fierce combat.

💡

Did You Know?

Their smooth, metallic exoskeleton makes them very difficult for predators to grip.

Question Mark Butterfly

Orange butterfly with dark spots and irregular wing margins. A silvery question-mark shape on the underside of the hindwing gives it its name.

💡

Did You Know?

It rarely visits flowers, preferring to feed on fermenting fruit, sap, and animal dung.