Horned Dung Beetle vs Rajah Naga Stag Beetle

Side-by-side species comparison

Attribute Horned Dung Beetle Rajah Naga Stag Beetle
Scientific Name Onthophagus taurus Prosopocoilus astacoides
Order Coleoptera Coleoptera
Family Scarabaeidae Lucanidae
Size 8-11 mm 30-70 mm including mandibles
Habitat Farmland Grasslands
Diet Dung Feeders Wood Feeders
Regions Europe, Asia, North America (introduced) Southeast Asia (Thailand, Vietnam, Laos, Myanmar, Malaysia, Indonesia)
Conservation Least Concern Least Concern

Horned Dung Beetle

The strongest insect on Earth relative to body size — can pull 1,141 times its own body weight. Males have curved horns used in underground tunnel combat for mating rights.

💡

Did You Know?

This beetle can pull 1,141 times its body weight — equivalent to a human pulling six double-decker buses. Its strength evolved from intense male-male combat in dung tunnels.

Rajah Naga Stag Beetle

A medium-sized stag beetle with reddish-brown elytra and a black head bearing distinctly toothed mandibles. Males display significant size variation with mandible shape changing allometrically.

💡

Did You Know?

Small males have straight, simple mandibles while large males develop elaborate curved and toothed mandibles, a phenomenon called male dimorphism.