Schistoneurus Mamaev 1964

Genus Schistoneurus Mamaev, 1964 The genus Schistoneurus previously contained two species, S. irregularis Mamaev, 1964 and S. impressus Mamaev, 1964, whose distribution is northern and central Europe (Gagné & Jaschhof 2021). While the presence of S. irregularis in Germany was recently evidenced (Jaschhof & Jaschhof 2021b), German records of S. impressus are still absent. Contrary to my expectations, the present project found two previously unknown species close to S. impressus, which are described below.