러시아ㆍ유라시아

Assing (2004) compared Medon impar with M. cerrutii Coiffait, 1976, characterized by a quite different aedeagal morphology, especially in lateral view, without comparing it with M. petrochilosi, the latter shar-ing with M. impar the same external characters, the structure of the male 5° visible ventrite, the shape of the aedeagus and of its inner sac. Indeed, he wrote in the comparative notes: “M. impar is distinguished from M. cerrutii, M. caricus, M. petrochilosi, and related species by the morphol-ogy of the aedeagus”, without further explanation, apart “apex of ventral process in lateral view of distinctive shape”, but a little protrusion is not sufficient, in my opinion, for describe a new species (cf figs 16-19 and 24-27 in Assing 2004). The distribution of M.petrochilosi is the follow-ing: Croatia, Peloponnese, Rhodes.