Black-waved Flannel Moth vs Arctic Woolly Bear Moth

Side-by-side species comparison

Attribute Black-waved Flannel Moth Arctic Woolly Bear Moth
Scientific Name Megalopyge crispata Gynaephora groenlandica
Order Lepidoptera Lepidoptera
Family Megalopygidae Erebidae
Size 25-35 mm wingspan 30-40 mm wingspan
Habitat Orchards Heathland
Diet Herbivores Omnivores
Regions Eastern North America Canadian Arctic Archipelago, Greenland, Ellesmere Island
Conservation Least Concern Least Concern

Black-waved Flannel Moth

A fluffy white to yellowish moth with wavy dark lines across the forewings. Like its relative the puss moth, its caterpillar is densely hairy and delivers a painful sting.

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Did You Know?

The adult moth's long curly wing scales make it look remarkably like a tiny Persian cat.

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.