Parnassiana is a genus of bush crickets in the tribe Platycleidini and genus group Platycleis, erected by F. E. Zeuner in 1941.

[1] Species have been called "Greek bush-crickets" and members of this genus have been recorded mostly from that country.

[2] Grecian species such as P. chelmos and P. fusca often live in upland (1200-2300 m.) pastures and with thorny, low-growing shrubs such as Astragalus spp., often perched in these, rather than near the ground.

Adults can typically be found between July and October.

Several species are locally endemic: for example, P. fusca is only found on Mount Taygetos in the southern Peloponnese.