Holotype of Callistethus hamus Lu & Zorn, sp. nov. 1–3 habitus 1 dorsal view 2 ventral view 3 lateral view from left 4 head and pronotum 5 propygidium and pygidium 6–8 aedeagus 6 dorsal view 7 lateral view from right 8 ventral view 9 label. Key: Sc. 1, Scale bars: 5 mm (1–3); Sc. 2, 5 mm (4, 5); Sc. 3, 1 mm (6–8).

 
 
  Part of: Lu Y-Y, Zorn C, Král D, Bai M (2019) Description of Callistethus hamus sp. nov. (Coleoptera, Scarabaeidae, Rutelinae) from continental Southeast Asia using synchrotron to illustrate the aedeagus. ZooKeys 881: 1-11. https://doi.org/10.3897/zookeys.881.34821