Osumi Ground Beetle vs Scarlet Longhorn Beetle

Side-by-side species comparison

Attribute Osumi Ground Beetle Scarlet Longhorn Beetle
Scientific Name Carabus osumensis Mastododera coccinea
Order Coleoptera Coleoptera
Family Carabidae Cerambycidae
Size 22-30 mm 25-40 mm
Habitat Forests Forests
Diet Predators Wood Feeders
Regions East Asia, Japan (Kyushu) Madagascar
Conservation Vulnerable Least Concern

Osumi Ground Beetle

An endemic ground beetle from the Osumi Peninsula in southern Kyushu, Japan. Features a beautiful metallic green-gold coloration. A nocturnal predator of forest floor invertebrates.

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Did You Know?

This beetle's restricted range on the Osumi Peninsula makes it a textbook example of geographic speciation on the Japanese archipelago.

Scarlet Longhorn Beetle

A visually striking longhorn beetle with bright red elytra and a dark head and thorax. Its long, curved antennae often exceed the length of its body.

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Did You Know?

Its brilliant red coloration is thought to serve as a warning signal, though the beetle is not known to be toxic.