New, confirmative and additional finds of eleven species are reported, a list of errata to the checklist is given, problematic species regarding their delimitations and therefore promising for further (molecular) studies are listed, and the latest changes in nomenclature and faunistics concerning the Swiss fauna are provided. Summarizing all changes, a total of 1062 taxa are presently known. Furthermore, based on the Böschenstein collection (Museum zu Allerheiligen. Schaffhausen), erroneous determinations by Gustav Stierlin could be detected and are reported herein.

keywords: Coleoptera. Curculionoidea. supplement, checklist. Switzerland.