Columbia Silk Moth vs Karner Blue

Side-by-side species comparison

Attribute Columbia Silk Moth Karner Blue
Scientific Name Hyalophora columbia Plebejus samuelis
Order Lepidoptera Lepidoptera
Family Saturniidae Lycaenidae
Size 90-130 mm wingspan 22-28 mm wingspan
Habitat Farmland Deserts & Drylands
Diet Omnivores Omnivores
Regions Northern United States and Canada, particularly the Great Lakes region Great Lakes and northeastern United States
Conservation Least Concern Endangered

Columbia Silk Moth

A large reddish-brown silk moth closely related to the cecropia moth but found in northern bog habitats. Its cocoon is spun on larch branches rather than broad-leaved trees.

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Did You Know?

It is one of the few silk moths adapted to boreal wetlands, where its larvae specialize on conifer needles instead of hardwood leaves.

Karner Blue

A tiny bright blue butterfly with orange crescents on the hindwing underside that depends entirely on wild lupine. It is a federally endangered species in the United States.

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Did You Know?

It was first described by novelist Vladimir Nabokov, who was also a serious lepidopterist at Harvard's Museum of Comparative Zoology.