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Northern Prairie Wildlife Research Center

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Caterpillars of Pacific Northwest
Forests and Woodlands

Lophocampa argentata [Arctiidae]

Clusters of short yellow hairs are concentrated subdorsally with clusters of short orange hairs located laterally; middorsal clusters of short black hairs; black body. This caterpillar is very common on conifers, particularly Douglas-fir, where it is an occasional pest on ornamental and Christmas trees. Early instars are gregarious. It is present in August and overwinters, finishing development by May or June.

Previous Section -- Gnophaela latipennis [Arctiidae]
Return to Photo Key to Species in Group B-2a - Less than half covered in long hairs
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