Boxplots with the variation in number of adhesive pro- (a) and mesotarsal (b) discs. Number of adhesive discs for G. elatus and G. perplexus, the box represents median ± 25% and whiskers show minimum and maximum numbers.

  Part of: Holmgren S, Angus R, Jia F, Chen Z-n, Bergsten J (2016) Resolving the taxonomic conundrum in Graphoderus of the east Palearctic with a key to all species (Coleoptera, Dytiscidae). ZooKeys 574: 113-142.