Map of Southeast Asia showing distributions of Callistethus hamus and Callistethus rachelae.

 
 
  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