The eggs are laid on different Lamiaceae (Stachys, Marrubium and others). In breeding, the caterpillar accepted easily Betonica officinalis.
Carcharodus orientalis inhabits pastures, steppe slopes and other sites that are rich in grasslands and ruderalized places. The larval food plants are often indicators for grazing or ruderalization.
Carcharodus orientalis forms 2 or 3 generations per year. I met adults and eggs regularly in Northern Greece, both in May 2008 and in July 2007, but in rather low density. Hibernation should therefore take place in a late instar, i.e. most probably in penultimate or last one.
Carcharodus orientalis is still quite common in Greece and not at immediate risk, although their habitats decline gradually.
The distribution is Southeastern European (southern Balkans, Greece, very rare in Bulgaria and Hungary) and Western Asian (Turkey, Iran, etc.).