Cottonwood Stag Beetle vs Coppery Chlaenius

Side-by-side species comparison

Attribute Cottonwood Stag Beetle Coppery Chlaenius
Scientific Name Lucanus mazama Chlaenius cumatilis
Order Coleoptera Coleoptera
Family Lucanidae Carabidae
Size 22-35 mm 12-16 mm
Habitat Rivers & Streams Ponds & Lakes
Diet Wood Feeders Predators
Regions Central and Southern United States Japan, Korea, China, Russian Far East
Conservation Least Concern Least Concern

Cottonwood Stag Beetle

A medium-sized North American stag beetle found near river bottoms. Males have moderately large mandibles.

💡

Did You Know?

They are most commonly found near cottonwood and willow trees along river corridors.

Coppery Chlaenius

A medium-sized ground beetle with brilliant metallic blue-green coloring and fine pubescence covering its elytra. It is found near water in East Asia and is a striking member of its genus.

💡

Did You Know?

The genus Chlaenius is one of the most diverse among ground beetles, with over 1,000 species worldwide, many of which have brilliant metallic coloring.