Hydropunctaria rheitrophila is a species of freshwater, saxicolous (rock-dwelling), crustose lichen in the family Verrucariaceae.

It was formally described as a new species in 1922 by German lichenologist Georg Hermann Zschacke as a species of Verrucaria.

[2] Christine Keller, Cécile Gueidan, and Holger Thüs transferred it to the newly circumscribed genus Hydropunctaria in 2009.

[3] It is one of several aquatic lichens that are in this genus.

[4] The photobiont partner of Hydropunctaria rheitrophila is a yellow-green alga (class Xanthophyceae, genus Heterococcus).