Weaver's fritillary

The Weaver's Fritillary or Violet Fritillary "Boloria dia" is a butterfly of the Nymphalidae family. Its English name, after an insect dealer, Richard Weaver, comes from his capture of an insect early in the 19th century at Sutton Park, Tamworth. However this and the small number of other English specimens are thought to be of introductions, possibly accidental.