 — Larva bone-colour, with a red-yellow dorsal-stripe in which there is a thin dark line, a yellow side-stripe and feeble, hardly visible, longitudinal hues; till June on Festuca.The butterflies from July till September, the various forms in some places flying together, being separated in other districts, common on lime-stone mountains, in the whole of South Europe, from Portugal to Turkey and South Russia, everywhere at the Black Sea, eastwards to Saisan in the Altai (Rueckbeil).In Europe the species extends northwards as far as Alsatia, Baden, Hungary (ab.