Habitat:
Parnassiana fusca inhabits stony grassland and mountain slopes which are interspersed with higher growing grass tussocks, open ground and dwarf shrubs (between 1500 and 2300m).
Life cycle:
The adults stay often in small-scale denser vegetation or within dwarf shrubs. In early August 2019 I recorded many adults, but still some larvae in higher altitudes.
Remarks:
Parnassiana fusca is endemic to Mount Taygetos (Greece, S-Peloponnese).