Arctic Woolly Bear Moth vs Small Magpie Moth

Side-by-side species comparison

Attribute Arctic Woolly Bear Moth Small Magpie Moth
Scientific Name Gynaephora groenlandica Anania hortulata
Order Lepidoptera Lepidoptera
Family Erebidae Crambidae
Size 30-40 mm wingspan 26-30 mm wingspan
Habitat Heathland Underground
Diet Omnivores Herbivores
Regions Canadian Arctic Archipelago, Greenland, Ellesmere Island Europe, Western Asia
Conservation Least Concern Least Concern

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.

Small Magpie Moth

A pretty white moth with black spots and a yellow head. Despite its name, it is a crambid rather than a geometrid like the true Magpie Moth.

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Did You Know?

The caterpillar lives inside a rolled leaf shelter that it spins shut with silk.