Portman, Z.M., Arduser, M., Powley, M.E. and Cariveau, D.P. 2024. Taxonomy of Agapostemon angelicus and the A. texanus species complex (Hymenoptera, Halictidae) in the United States. European Journal of Taxonomy. 958, 1 (Oct. 2024), 203-241. DOI:https://doi.org/10.5852/ejt.2024.958.2671.