A key for the species of the genus Neoplagionotus Kasatkin, 2005

1 (2) Anterior part of prosternum totally pubescent; beetles are usually bigger, body length up to 21 mm .................................................................................................... N. bobelayei (Brullé, 1832)

2 (1) Anterior part of prosternum glabrous anteriorly; small beetles, specimens longer than 14 mm are not known.

3 (6) Metasternum glabrous; metepisternum totally pubescent.

4 (5) Third elytral band with straight anterior margin; lateral humeral spot hardly reaching the level of second elytral band...................................................................................... N. scalaris (Brullé, 1832)

5 (4) Third elytral band with curved anterior margin with curved; lateral humeral spot longer, in females reaching 3 rd elytral band and in males reaching the level of second elytral band........................................ N. andreui Fuente, 1908

6 (3) Metasternum with scattered pubescence; metepisternum with partly reduced yellow pubescence anteriorly................................................................................................. N. bednariki sp. nov.