Japanese Giant Silkmoth vs Buck Moth

Side-by-side species comparison

Attribute Japanese Giant Silkmoth Buck Moth
Scientific Name Saturnia japonica Hemileuca maia
Order Lepidoptera Lepidoptera
Family Saturniidae Saturniidae
Size 85-120 mm wingspan 50-75 mm wingspan
Habitat Mountains Heathland
Diet Omnivores Omnivores
Regions Japan Eastern North America
Conservation Least Concern Least Concern

Japanese Giant Silkmoth

A large reddish-brown moth with prominent eyespots on all four wings. It is endemic to Japan and closely related to the European Emperor Moth.

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Did You Know?

It is considered a harbinger of spring in rural Japan, where it is called 'kusu-san'.

Buck Moth

A day-flying black and white moth with a red-tipped abdomen that appears in autumn. Its spiny caterpillar delivers a painful venomous sting that causes welts and swelling.

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Did You Know?

In New Orleans, falling caterpillars are a seasonal hazard, prompting public health warnings each spring.