Basionym Name:Collemopsis subsimilis Vain., Meddn Soc. Fauna Flora fenn. 6: 88 (1881)
Homotypic synonyms:Psorotichia subsimilis (Vain.) Forssell, Nova Acta R. Soc. Scient. upsal., Ser. 3 13(no. 6): 76 (1885)