Brown, 1948b (distr.; var.); Cobben, 1959 (tax.); Péricart, 1990 (distr., tax.).
Distribution
Rosenzweig, 1995b (Byelorussia: e. elegantula); Protić, 2009a (Serbia: e. longicornis); Linnavuori & Hosseini, 2000a (Iran: e. longicornis); Ghahari et al., 2013a (Iran: e. longicornis); Vinokurov et al., 2020 (China: Inner Mongolia); Coulianos: Lithuania: e. elegantula!