P. occidentale P. ocellatum Pseudothelomma is a genus of crustose pin lichens in the family Caliciaceae.

[1] The genus was circumscribed in 2016 by lichenologists Maria Prieto and Mats Wedin.

The generic name Pseudothelomma refers to its resemblance to the genus Thelomma, where the two species used to be classified.

Both species grow on dry exposed wood, particularly fence posts.

The ascomata are immersed in wrinkles, and are flat, sometimes with a green or yellow pruina on the mazaedia.