This splendid insect may now be Britain's rarest butterfly (it is certainly the most rapidly declining). Although it once occurred in most large woodlands in England and Wales, it now has fewer that 100 colonies left mainly in two strongholds, the Lake District and Dartmoor. Told from the very similar dark green fritillary by a row of brick-red spots with white centres on the hind wing.
Larval food plant: violets Where seen: habitats where bracken is present, on limestone or where woodland has been cleared. Current conservation status: rapid decline.