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Northern Prairie Wildlife Research Center

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Caterpillars of Pacific Northwest
Forests and Woodlands

Antheraea polyphemus [Saturniidae]


Green; head and true legs brown; base of primary setae red, subdorsal and lateral setae have a silver shading below; end of prolegs with yellow ring and tipped in black; diagonal streak of black and silver on A9. This species is common on many broadleaf trees, such as white oak and big-leaf maple, during July and August.


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