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Peacock Nymphalis io Wingspan 60mm. A colourful and distinctive garden butterfly, also associated with wayside habitats where larval foodplant flourishes. Adult has marbled brown underwings and maroon upperwings with bold eye markings. Flies from July–September; hibernates during winter months and appears again in spring. Larva is spiny and black; feeds on Common Nettle and young stages are gregarious. Common and widespread throughout much of lowland Britain.