The Marsh Fritillary, Euphydryas aurinia, is a butterfly of the Nymphalidae family. It is widespread in the Palaearctic region from Ireland in the West to Yakutia in the East, and to North-west China and Mongolia in the South. E. aurinia is represented by many subspecies. The Marsh Fritillary is in decline in Europe and one of 11 butterflies covered by the United Kingdom Biodiversity Action Plan. The larvae are recorded as feeding on Succisa pratensis and species of Digitalis, Plantago,Veronica (V.dubravnaya, etc.), Geranium, Sambucus, Gentiana, Valeriana, Lonicera, Filipendula, Spiraea and Viburnum.