Little Carpenterworm vs Rajah Naga Stag Beetle

Side-by-side species comparison

Attribute Little Carpenterworm Rajah Naga Stag Beetle
Scientific Name Prionoxystus macmurtrei Prosopocoilus astacoides
Order Lepidoptera Coleoptera
Family Cossidae Lucanidae
Size 25–45 mm wingspan 30-70 mm including mandibles
Habitat Woodlands Grasslands
Diet Wood Feeders Wood Feeders
Regions Eastern North America Southeast Asia (Thailand, Vietnam, Laos, Myanmar, Malaysia, Indonesia)
Conservation Not Evaluated Least Concern

Little Carpenterworm

A smaller relative of the carpenterworm moth that bores into oaks and other hardwoods. Larvae create long tunnels through the sapwood and heartwood.

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Did You Know?

Its tunnels reduce the commercial value of lumber and provide entry points for wood-decay fungi.

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.

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Did You Know?

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