Habitat:
Parnassiana parnassica inhabits dry and warm mountain slopes with dwarf shrubs, Thymus and usually much Eryngium amethystinum between about 1500 and 2400m.
Life cycle:
The adults appear especially between late June and September. They are often local on the vast slopes, but then quite individual-rich on small patches. They usually stay in plant cushions or dwarf shrubs. They may be also greenish, especially females. I met about 15 individuals that were all brown.
Remarks:
According to present knowledge, Parnassiana parnassica occurs only on Mount Parnassos and Mt. Elikonas in southern central Greece.