Map of the new Trigonopterus species of the T. trigonopterus group across the Sundaland area. Prepared using GeoMapApp (www.geomapapp.org; ; Ryan et al. 2009); azure = T. grimmi sp. nov., yellow = T. siamensis sp. nov., red = " T. singaporensis sp. nov., magenta = T. trigonopterus Riedel.

 
 
  Part of: Riedel A (2022) Nine new species of Trigonopterus Fauvel (Coleoptera, Curculionidae) from Sundaland. ZooKeys 1124: 109-130. https://doi.org/10.3897/zookeys.1124.89318