Pertusaria pseudoparotica is a species of saxicolous (rock-dwelling), crustose lichen in the family Pertusariaceae.

The type specimen was collected by Sipman and Thomas Raus from the Kefalos peninsula of Kos, one of the East Aegean Islands.

There, at an altitude of about 200 m (660 ft), the lichen was found growing on siliceous rock outcrops near the coast.

[1] The crustose thallus of Pertusaria pseudoparotica has a dull greyish to pale brownish white colour, and often reaches sizes of over 10 cm (3.9 in).

[1] Pertusaria pseudoparotica grows on the full sun-exposed, slanting faces of siliceous rocks, including andesite.