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A large North American saturniid moth (Eacles imperialis) having yellow wings with purplish or brownish markings.
a yellow moth, Eacles imperialis, with purple bands.
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|Noun||1.||imperial moth - large American moth having yellow wings with purplish or brownish markings; larvae feed on e.g. maple and pine trees|
saturniid, saturniid moth - large brightly colored and usually tropical moth; larvae spin silken cocoons