Comma Polygonia c-album
Named for the little curved white mark on the underside of the hind-wing that adds to the illusion that the hibernating butterfly is just a ragged leaf. Breeding when they emerge from hibernation, some of the eggs develop quickly to produce paler coloured adults that breed at once to produce a second generation that are darker coloured and will hibernate before breeding. Meanwhile, eggs that hatch later produce the normal adults and these too don’t breed until the next year, after hibernation.
Images L-R: upperside - the sexes are similar; underside; pupa
Flight Period: Usually March – October but may be seen flying on warm winter days