Pseudagenia cressoni Cameron, 1891:161, ♀.Guatemala, San Geronimo (leg. Champion); ♀, Mexico, Dós Arroyos and Xucumanatlan in Guerrero, Atoyac in Vera Cruz (leg. H.H. Smith). - Cameron, 1888-1900Cameron, P. 1888-1900. Biologia Centrali-Americana - Insecta. Hymenoptera. (Fossores) Vol. II. R. H. Porter and Dulau & Co., London. 413pp, 14 pl.:161 (listed); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:202 (listed). - As Auplopus cressoni: - Dreisbach, 1963Dreisbach, R.R. 1963. New species of spider wasp, genus Auplopus from the Americas South of the United States (Hymenoptera: Psammocharidae). Proceedings of the United States National Museum 114:137-211. (distribution), 141 (key female); Fernández et al., 2022Fernández, F., J. Rodriguez, C. Waichert, B. Decker & J. Pitts 2022. Twenty two years later: An updated checklist of Neotropical spider wasps (Hymenoptera: Pompilidae). Zootaxa 5116 (4):451-503. (distribution). - As Pseudagenia cressonii: - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 202 (listed).