Arthonia stereocaulina is a species of lichenicolous fungus in the family Arthoniaceae.

[1] Arthonia stereocaulina has been reported from Alaska,[2] Canada,[2] Iceland,[3] Russia[2] and Svalbard.

[2] As the name suggests, Arthonia stereocaulina infects lichens of the genus Stereocaulon.

[3][2] Known host species are:

This Arthoniomycetes-related article is a stub.