Male genitalia structure of the type species of the genus Augilina Melichar, 1914, Augilina longipes Melichar, 1914, is studied and illustrated for the first time. A new genus, Polychornum gen. nov., is erected to accommodate Augilina namboina Gnezdilov, 2013 (as a type species), A. tetraina Chen et Gong, 2021, and Symplana biloba Meng, Qin et Wang, 2020, with new combinations proposed – Polychornum namboinum (Gnezdilov, 2013), comb. nov., P. tetrainum (Chen et Gong, 2021), comb. nov., and P. bilobum (Meng, Qin et Wang, 2020), comb. nov. Augilina triaina Chen et Gong, 2021 is placed in synonymy under Symplana biloba. Key to species of Polychornum gen. nov. is given.