Since the description of the genus Tartarothyas K. Viets, 1934 from a spring in SE-Europe (T. mi crommata K. Viets, 1934), several rare findings were published from the Western Palaearctic (K. Viets 1934, Husiatinschi 1937, Motas & Tanasachi 1962, Bader 1989, Schwoerbel 1991, Gerecke 1996, Gerecke & Martin 2006). Currently two rather similar species are recognized in the European fauna T. micrommata K. Viets, 1934 and T. romanica Husiatinschi, 1937 (Gerecke 1996, Di Sabatino et al. 2010). Four species are