Hylaeus (Dentigera) alievi Dathe & Proshchalykin, sp. nov., holotype, male 1 head, frontal view 2 habitus, dorsal view 3 propodeum 4 mesopleuron 5 metasterna with bicuspid transverse callus on S3 6 sternum 7 7 sternum 8 8 copulatory capsule. Scale bars: 0.5 mm.

 
 
  Part of: Proshchalykin MYu, Dathe HH (2021) New and little-known bees of the genus Hylaeus Fabricius, 1793 (Hymenoptera, Colletidae) from the Caucasus region. In: Proshchalykin MYu, Gokhman VE (Eds) Hymenoptera studies through space and time: A collection of papers dedicated to the 75th anniversary of Arkady S. Lelej. Journal of Hymenoptera Research 84: 169-185. https://doi.org/10.3897/jhr.84.68250