Cryptothecia punctosorediata is a species of corticolous (bark-dwelling) crustose lichen in the family Arthoniaceae.

Found in northern Thailand, it was formally described as a new species in 2005 by Laurens Sparrius.

The type specimen was collected from Ban Hauy Som Poy (Nan Province) at an elevation of 300 m (980 ft); here it was found growing on the smooth bark of the mango tree Mangifera indica.

The specific epithet punctosorediata refers to the punctiform (dot-like and minute) soralia.

At the time of publication, C. punctosorediata was the only species of Cryptothecia known to have discrete soralia.