Figure 9 from: Fossen EI, Ekrem T, Nilsson AN, Bergsten J (2016) Species delimitation in northern European water scavenger beetles of the genus Hydrobius (Coleoptera, Hydrophilidae). ZooKeys 564: 71-120. https://doi.org/10.3897/zookeys.564.6558

• Main Authors: Fossen, Erlend, Ekrem, Torbjørn, Nilsson, Anders, Bergsten, Johannes
• Format: Other/Unknown Material
• Language: unknown
• Published: 2016
• Subjects: Animalia; Arthropoda; Insecta; Coleoptera; Hydrophiloidea; Hydrophilidae; HydrobiusAnimalia; Hydrobius; Hydrobius fuscipesAnimalia; Hydrobius fuscipes; GMYC; species complex; BPP; guide tree; Fennoscandia; morphometrics; Bayesian; genitalia; molecular phylogeny; species boundaries; morphology; cryptic species; integrative taxonomy; DNA barcoding; identification key; taxonomy; checklist; Fossen
• Online Access: https://zenodo.org/record/973440; https://doi.org/10.3897/zookeys.564.6558.figure9

Figure 9 - Male genitalia of Hydrobius morphotypes in dorsal view. A Hydrobius fuscipes fuscipes B Hydrobius fuscipes subrotundus C Hydrobius fuscipes rottenbergii D Hydrobius arcticus.