Scarlet Longhorn Beetle vs Actaeon Beetle

Side-by-side species comparison

Attribute Scarlet Longhorn Beetle Actaeon Beetle
Scientific Name Mastododera coccinea Megasoma actaeon
Order Coleoptera Coleoptera
Family Cerambycidae Scarabaeidae
Size 25-40 mm 50-135 mm
Habitat Forests Forests
Diet Wood Feeders Wood Feeders
Regions Madagascar South America
Conservation Least Concern Least Concern

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.

Actaeon Beetle

Contender for the worlds heaviest beetle — a male larva bred in Japan weighed 228 grams, about the weight of a brown rat. Adults are armored giants of the Amazon.

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Did You Know?

A captive-bred Actaeon beetle larva weighed 228 grams — about half a pound — making it the heaviest insect larva ever recorded, heavier than a hamster.