(Erebia epistygne)
Erebia epistygne,the spring ringlet,is a species of butterfly in the family Nymphalidae.It is found in France and Spain.Its natural habitat is temperate grassland. The length of the forewings is 22–25 mm.Adults are on wing from March to May. Its larval host plant is the grass Festuca ovina (Poaceae).Although it has also been reported from other Festuca and Poa species.