Pham, P.H., Ohl, M., Nguyen, A.T.T. and Nguyen, D.T. 2025. Taxonomy of the genus Chalybion Dahlbom, 1843 (Hymenoptera: Sphecidae) from Vietnam, with description of a new species. Zootaxa. 5679, 4 (Aug. 2025), 573–584. DOI:https://doi.org/10.11646/zootaxa.5679.4.6.