Schuh et al., 1995. Distribution: Protić, 1998a (Serbia); Lodos et al., 2003 (Asian Turkey); Coulianos, 2005 (Estonia); Linnavuori, 2007a (Iran); Söderman & Rintala, 2009 (Lithuania); Knyshov & Namyatova, 2010 (Russia WS); Skipper & Tolsgaard, 2013 (Denmark).