Parerga Lichenol. (Breslau) 2: 131 (1860). Basionym: Biatora polychroa Th. Fr., Öfvers. K. Svensk. Vetensk.-Akad. Förhandl. 12: 17 (1855). Type locality: Ukraine, "Ucrania in Acere campestri", probably collected near Charkow, Czernaiajev (UPS - lectotype). Designated by Ekman (1996: 88). Type locality coordinates: 50°0'0"N, 36°15'0"E; 50°, 36.25°.
Basionym: Biatora polychroa Th. Fr., Öfvers. K. Svensk. Vetensk.-Akad. Förhandl. 12: 17 (1855).
Type locality coordinates: 50°0'0"N, 36°15'0"E; 50°, 36.25°.