F. h. sibirica Khakhlov, 1915

Muscicapa atricapilla sibirica Khakhlov, 1915: 315 .

Type locality Tomsk, Russia . The type specimens (ZMMU R-29257, lectotype, female; ZMMU R-29253, paralectotype, female) are deposited at the Zoological Museum of the M. V. Lomonosov Moscow State University (Moscow, Russia). A third female specimen used in the original description is lost ( Pavlinov & Borissenko 2001). This name is invalid as a junior primary homonym of Muscicapa sibirica Gmelin, 1789 (Mayr & Cottrell 1986), and the subspecies it denotes is now Ficedula hypoleuca tomensis (Johansen, 1916) (see below).