Figure 3 from: 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. https://doi.org/10.3897/zookeys.574.7002

Figure 3 - Female dimorphism in Graphoderus zonatus (a–b) and Graphoderus elatus (c–d). a, c granulated female elytra b, d smooth female elytra.