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Northern Prairie Wildlife Research Center

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Caterpillars of Pacific Northwest
Forests and Woodlands

Polygonia faunus [Nymphalidae]

Generally light orange with an extensive dorsal patch of white irregularly bordered in black on A2-A9; multibranched spines on T2-A9; dorsal spines on T2-A2 are light orange; dorsal spines on A3-A9 and the subspiracular spines on A1-A8 are mostly white; black head mottled with orange. This species is common on willows during June and July.

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Return to Photo Key to Species in Group B-3a - Spines with a single point
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