Erebia rondoui
The Pyrenees brassy ringlet looks in flight just like other brassy ringlets but is actually easy to identify when it rests (the very similar Spanish brassy ringlet does not fly in the same places). There is a single ocellus in the corner of the forewing containing two pupils and the orange markings are well developed. Compare this with the common brassy ringlet, which has two ocelli very close together and more restricted orange.
Pyrenees brassy ringlet are restricted to Spain, France and Andorra, occuring in high mountainous parts of the Pyrenees.