A–D Tetraserica geiserae sp. n. (holotype) E–I T. thainguyensis sp. n. (holotype) A, E aedeagus, left side lateral view C, H aedeagus, right side lateral view B, F parameres, dorsal view G parameres distal view D, I habitus. Scale bars: 0.5 mm. Habitus not to scale.

  Part of: Fabrizi S, Dalstein V, Ahrens D (2019) A monograph on the genus Tetraserica from the Indochinese region (Coleoptera, Scarabaeidae, Sericini). ZooKeys 837: 1-155. https://doi.org/10.3897/zookeys.837.32057