Horváth, 1912c; Lee, 1969 (larva); Maa, 1957 (larva); Péricart, 1983 (monogr.); Takeya, 1963; Zhuravleva et al., 2023 (DNA, comparison oberti).
Distribution: Del Bene & Pluot-Sigwalt, 2005 (Italy); Kment, 2007 (Greece); Rabitsch, 2008a (France Zwitserland); G.Q. Liu & Bu, 2009 (China NO); A. Gogala & Seljak, 2010 (Slovenia); Aukema, 2013 (Netherlands); Simon, 2020 (Germany); Zhuravleva et al., 2023 (Russia: ST).