Japanese Silk Moth vs Viceroy Butterfly

Side-by-side species comparison

Attribute Japanese Silk Moth Viceroy Butterfly
Scientific Name Antheraea yamamai Limenitis archippus
Order Lepidoptera Lepidoptera
Family Saturniidae Nymphalidae
Size Wingspan 110-150 mm 53-81 mm wingspan
Habitat Indoors Ponds & Lakes
Diet Herbivores Dung Feeders
Regions Japan, Korea, China North America
Conservation Not Evaluated Least Concern

Japanese Silk Moth

A large wild silk moth native to Japan with striking yellow-brown wings bearing prominent eyespots. Its silk was historically used to produce high-quality tensan fabric.

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Did You Know?

Its silk, called tensan, is naturally green-tinged and was reserved for Japanese imperial garments.

Viceroy Butterfly

Orange and black wings resembling the Monarch but with a black postmedian line across the hindwings. Once thought to be a harmless mimic, it is actually unpalatable too.

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Did You Know?

It is a Mullerian co-mimic with the Monarch, as both species are distasteful to predators.