Russel, 1970; Sands, 1957; Yamada & Yasunaga, 2021 (diagnosis); Zheng & Bu, 1990.
Distribution: Protić, 1998 (Montenegro Serbia); Linnavuori & Hosseini, 2000a (Iran); Bu & L.Y. Zheng, 2001 (China NW); Coulianos, 2005 (Estonia); Söderman & Rintala, 2009 (Lithuania).