Lorkovic and Lesse, 1954
De Lesse's Brassy Ringlet
Description:
De Lesse's Brassy Ringlet occurs above the tree-line on sunny, rocky, steep open slopes with patches of grassy vegetation.
The caterpillars are found on Festuca quadriflora and take nearly two years to develop.
Habitat: 
Alpine grasslands
Screes
Inland cliffs and exposed rocks
Similar species:
Erebia tyndarus 
Erebia ottomana 
Erebia calcaria