After presenting the first checklist of Cleridae of Namibia, this supplement includes results of the 2019 expedition of the author, data from Hans Mühle, Munich and reports on the genus Korynetes (published by Opitz 2018). It includes the label data (locations) from newly collected specimens, distribution maps and colour photos of Eucymatodera speciosa, new record for Namibia and Eucymatodera sp. 4. Consequently the number of checkered beetle species of Namibia increases to 45 species. Keywords: Cleridae, checklist, Namibia, distribution maps, colour habitus photo.