S. kuesteri (Schilsky, 1905):

Popov (1968), Borowiec (1983, 1987b), Wendt (1984), Chochev (1988), Chochev & Chochev (1991), Borowiec & Anton (1993), Delobel & Delobel (2007), Gueorguiev & Ljubomirov (2009), Anton (2010)