Arctic Woolly Bear Moth vs Freyer's Purple Emperor

Side-by-side species comparison

Attribute Arctic Woolly Bear Moth Freyer's Purple Emperor
Scientific Name Gynaephora groenlandica Apatura metis
Order Lepidoptera Lepidoptera
Family Erebidae Nymphalidae
Size 30-40 mm wingspan 60-70 mm wingspan
Habitat Heathland Rivers & Streams
Diet Omnivores Dung Feeders
Regions Canadian Arctic Archipelago, Greenland, Ellesmere Island Southeastern Europe, Central Asia, China
Conservation Least Concern Least Concern (globally); rare and declining in Eu

Arctic Woolly Bear Moth

A medium-sized moth whose caterpillar is famous for its extremely long development. Adults are gray-brown with hairy bodies. The densely hairy caterpillar is dark brown to black and curls into a tight ball when disturbed.

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Did You Know?

The caterpillar can take up to 14 years to complete development, spending most of each year frozen solid and thawing for only a few weeks of feeding each summer.

Freyer's Purple Emperor

A large, powerful butterfly closely related to the purple emperor but restricted to river valleys. Males display a brilliant purple-blue iridescence on the upper wing surface.

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Did You Know?

Males patrol narrow sections of riverbank at high speed, chasing away all other large insects.