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Northern Prairie Wildlife Research Center

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Caterpillars of Pacific Northwest
Forests and Woodlands

Malacosoma constrictum [Lasiocampidae]

Blue and black; dense white pairs project laterally. This species is common on many broadleaf trees, in particular white oak, during May and June.

Previous Section -- Western Tent Caterpillar
Return to Photo Key to Species in Group B-2a - Sublateral long, dense hairs
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