caterpillars' food plants are nettles and sometimes hops.
Adults feed on nectar from flowers such as thistles and
buddleia. During late summer they will also feed from over-ripe fallen fruit.
upper wing is mostly red with black markings and a large
yellow and purple eye spot at the tip. Lower wings are red
with a dark blue eye spot
surrounded by a white ring. The
butterfly's body is dark reddish brown and usually covered
in shiny hairs. The underside is dark-brown or black
Male: 63 - 68 mm. Female: 67 - 75 mm
Almost anywhere in U.K. Hibernate in outbuildings.