This blog's recent Comma theme continues, with an adult at Mowsbury Hill this afternoon. Note that like other Nymphalidae butterflies it appears to have only four legs, when, as we all know, insects have six. In this family the front pair have reduced to shortened "brushes" tucked up against the body. (These are the two dark stripes below the eyes in this picture). Some therefore refer to this family as the "brush-footed" butterflies.