157507 Red Admiral - Vanessa atalanta - larva. Wingspan 60mm. An active, fast-flying butterfly that is also fond of basking in the sun. Adult has marbled dark-grey underwings and black upperwings with red bands and white spots. Commonest in July–August, but also seen in many other months. Larva is spiny and brown with yellow markings; feeds on Common Nettle, hidden inside ‘tent’ of woven-together leaves. Mainly a summer migrant from southern Europe, but adults hibernate in small numbers and emerge on sunny days in early spring.