Basionym Name:Pyrenopsis caesiella Th. Fr., Bot. Notiser: 58 (1866)
Homotypic synonyms:Metamelanea caesiella (Th. Fr.) Henssen, in Henssen & Jørgensen, Lichenologist 22(2): 141 (1990)Psorotichia caesiella (Th. Fr.) Forssell, Nova Acta R. Soc. Scient. upsal., Ser. 3 13(no. 6): 75 (1885)