Marsh Fritillaries, moos and meadows in Galicia, Spain

The Marsh Fritillary butterfly, Euphydryas aurinia, is distributed right across the Palaearctic region – from Ireland to Russia. It is a species complex, divided into mostly distinct taxa or subspecies, with slightly different appearances, but strongly different ecological requirements (Casacci et al., 2015; Korb et al., 2016). These local, or regional populations have often specialised on, or adapted to,…