| Bright eyed ringlet, Erebia epistygne, Larche ringlet, Autumn ringlet, Mnestra's ringlet|
Erebia rondoui (Pyrenees brassy ringlet) is a species of butterfly in the family Nymphalidae. It is found in France and Spain, where it is found on altitudes ranging from 1,650 to 2,300 meters above sea level in the Pyrenees.
The wingspan is 30–32 mm. Adults are on wing from June to August in one generation per year.
The larvae feed on Poa and Festuca species. The species overwinters in the larval stage. Pupation takes place in spring.
Erebia rondoui Wikipedia
It was previously considered a synonym of Erebia cassioides and is considered as a subspecies of Erebia hispania by some authors.