Chalybion sumatranum, Taxa Only, Exact Match: 2 Treatments

Chalybion sumatranum			H, Phong, G, P. & N, Yuriy, 2015, Distributional checklist of sphecid wasps (Hymenoptera: Ampulicidae, Sphecidae, Crabronidae) from Vietnam, Linzer biologische Beiträge 47 (2), pp. 1581-1599 : 1585	1585
Chalybion sumatranum			Pham, Phong Huy, Ohl, Michael, Nguyen, Anh Thi Tu & Nguyen, Dinh Thi, 2025, Taxonomy of the genus Chalybion Dahlbom, 1843 (Hymenoptera: Sphecidae) from Vietnam, with description of a new species, Zootaxa 5679 (4), pp. 573-584 : 580	580