Figure 6 from: Freitag H, Pangantihon CV, Njunjić I (2018) Three new species of Grouvellinus Champion, 1923 from Maliau Basin, Sabah, Borneo, discovered by citizen scientists during the first Taxon Expedition (Insecta, Coleoptera, Elmidae). ZooKeys 754: 1-21. https://doi.org/10.3897/zookeys.754.24276

Figure 6 Grouvellinus leonardodicaprioi sp. n. (holotype male): A aedeagus in lateral view (spines of ventral sac omitted) B aedeagus in ventral view (spines of ventral sac omitted) C microscopic photograph of aedeagus in lateral view optically emphasizing the dense distribution of internal and external spines of the ventral sac. Scale bar: 0.1 mm.