Male Stelis flavofuscinular sp. nov. [A, B holotype (BSRU-AB-0157) C–G paratype (BSRU-AB-0156)] showing the A dorsal habitus B, C face D axilla, with postero-lateral hook highlighted in green E lateral habitus F metasomal apex G ventral habitus. Scale bars: 2 mm (A, E, G), 1 mm (B, C, F), or 0.5 mm (D).

 
 
  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