Male genitalia of two Vietnamese species of Anthidiellum Cockerell (Anthidiini) (dorsal views at left, ventral views at right) A, B Anthidiellum (Pycnanthidium) coronum (Wu, 2004) C, D A. (P.) cornu Tran, Engel & Nguyen, sp. nov. Scale bars: 0.5 mm.

 
 
  Part of: Tran NT, Engel MS, Nguyen CQ, Tran DD, Nguyen LTP (2023) The bee genus Anthidiellum in Vietnam: descriptions of five new species and the first male of Anthidiellum coronum (Hymenoptera, Megachilidae). ZooKeys 1144: 171-196. https://doi.org/10.3897/zookeys.1144.98644