Polybia acutiscutis Cameron, 1906:385, ♀ or xw. Cameron, 1906Cameron, P. 1906. Descriptions of new species of Neotropical Vespidae. Zeitschrift für systematische Hymenopterologie und Dipterologie 6:380-386.:386,British Honduras; Richards, 1978Richards, O.W. 1978. The social wasps of the Americas excluding the Vespinae. British Museum (Natural History), London. 1-567.:150, Holotype ♀, examined (BMNH); Santos et al., 2018Santos, J.N. dos Jr., O.T. Silveira & J.M. Carpenter 2018. Taxonomic revision of the Protopolybia sedula species-group (Hymenoptera, Vespidae, Polistinae), with an new identification key to species. Zootaxa 4403 (1):87-98.:89, Holotype ♀, examined (BMNH). - Cameron, 1907Cameron, P. 1907. On some Diplopteryga of Belize and Nicaragua. Invertebrata Pacifica 1:183-190. (distribution). - As Protopolybia acutiscutis: - Richards, 1978Richards, O.W. 1978. The social wasps of the Americas excluding the Vespinae. British Museum (Natural History), London. 1-567. (distribution); West-Eberhard et al., 1995West-Eberhard, M.J., J.M. Carpenter & P.E. Hanson 1995. The vespid wasps (Vespidae). In: Hanson, P.E. & I.D. Gauld (Ed.). The Hymenoptera of Costa Rica. 561-587. (distribution); Rasmussen & Asenjo, 2009Rasmussen, C. & A. Asenjo 2009. A checklist to the wasps of Peru (Hymenoptera, Aculeata). ZooKeys 15:1-78. (distribution); Carpenter et al., 2012Carpenter, J.M., B.R. Garcete-Barrett & Y.J.A.F. López 2012. Las Vespidae (Hymenoptera: Vespoidea) de Guatemala. In: Cano, E.B. & J.C. Schuster (Ed.). Biodiversidad de Guatemala. Volumen 2. 269-279. (distribution); Santos et al., 2015Santos, E.F. dos, Y.C Grandinete & F.B. Noll 2015. Additions to the checklist of Scoliidae, Sphecidae, Pompilidae and Vespidae of Peru, with notes on the endemic status of some species (Hymenoptera, Aculeata). ZooKeys 519:33-48. (distribution); Santos et al., 2018Santos, J.N. dos Jr., O.T. Silveira & J.M. Carpenter 2018. Taxonomic revision of the Protopolybia sedula species-group (Hymenoptera, Vespidae, Polistinae), with an new identification key to species. Zootaxa 4403 (1):87-98. (distribution); Valverde et al., 2019Valverde, P., P. Hanson & J. Carpenter 2019. Keys to the Costa Rican species of paper wasps (Hymenoptera: Vespidae: Polistinae). Revista de Biología Tropical (International Journal of Tropical Biology and Conservation) 67 (2):174-199. (distribution).