Study site at Kaeng Ka Lao Stream, PCNYNP, Ubon Ratchathani Province (Thailand), with the map produced using QGIS (3.16.0).

 
 
  Part of: Nalinrachatakan P, Traiyasut P, Khongnak A, Muangkam M, Ascher JS, Warrit N (2021) The resin bee subgenus Ranthidiellum in Thailand (Megachilidae, Anthidiini): nesting biology, cleptoparasitism by Stelis, and new species. ZooKeys 1031: 161-182. https://doi.org/10.3897/zookeys.1031.57836