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Northern Prairie Wildlife Research Center

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Caterpillars of Pacific Northwest
Forests and Woodlands

Photo Key to Species


Group B-2a -- Subgroups: Hairs different lengths - Species in group B-2a have hiars that are equal to or longer than half the width of the body.

Middorsal tufts of short, dense hairs - Species in this subgroup have tufts of relatively short but dense hairs middorsally on A1-A4, characteristic of the Lymantriidae.


Return to Photo Key to Species in Group B-2a
Next Section -- Sublateral long, dense hairs

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