The identity of Abrothallus friesii is cleared. The protologue refers to a lichenicolous hyphomycete apparently restricted to Strigula stigmatella. The new combination Taeniolella friesii (Hepp) Hafellner is proposed. All lichenicolous species of Taeniolella so far known are compared in a synoptic table. Lichenicolous fungi, Deuteromycotina, Hyphomycetes, Taeniolella, Hepp's exsiccate