14–15 Hind femur with the spine on metaventrite 14 Sternolophus acutipenis a length of femur b widest part of hind femur 15 S. mandelai a length of spine b basal pubescent area (modified from Nasserzadeh and Komarek 2017) 16–21 Dorsal view of aedeagus 16 Sternolophus acutipenis 17 S. angolensis 18 S. angustatus 19 S. immarginatus 20 S. marginicollis a lateral lobules at widest part of median lobe b total width of median lobe on apical portion of the sclerotized dorsal shield 21 S. solitarius a length b widest part of the parameres (modified from Nasserzadeh and Komarek 2017).

  Part of: Nasserzadeh H, Alipanah H, Gilasian E (2017) Phylogenetic study of the genus Sternolophus Solier (Coleoptera, Hydrophilidae) based on adult morphology. ZooKeys 712: 69-85. https://doi.org/10.3897/zookeys.712.14085