Aglyamzyanov, 1990, 1994; Aglyamzyanov, 2009 (tax.); Cobben, 1958b; Demchenko, 2004 (tax.); Josifov, 1992d; Qi, 1993b; J. Ribes & E. Ribes, 2002b (distr.); Rieger, 1987; Schwartz & Foottit, 1998; Selin, 2004 (distr.); Söderman & Rintala, 2009 (distr.); Wagner, 1941g, 1949g, 1950g.
Distribution
Baužys, 2013 (Lithuania); Ghahari & Chérot, 2014 (Iran); Heckman et al., 2015 (Crete).