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Emperor Moth Saturnia pavonia Wingspan 40-60mm. An unmistakable and beautiful moth; males are day-flying, females are nocturnal. Adult male has beautifully patterned brown forewings and orange hindwings, each with a striking central eyespot; female has beautifully patterned grey wings, with maroon bands and larger eyespots than male. Larva is green with clusters of hairs arising from yellow, warty spots; feeds on Heather and Bramble. Widespread but local; associated mainly with heaths and moorland.