Priocnemis pilifrons Cameron, 1912:419, ♀. ♀, British Guyana. - As Ageniella pilifrons: - Corro & Cambra, 2011Corro, P.E. & R.A. Cambra 2011. Diversidad de avispas (Hymenoptera: Pompilidae) cazadoras de arañas del Parque Nacional Darién, República de Panamá. Tecnociencia 13 (1):77-90. (distribution); Castro-Huertas et al., 2014Castro-Huertas, V., J.P. Pitts, J. Rodriguez, C. Waichert & F. Fernández 2014. New records of spider wasps (Hymenoptera, Pompilidae) from Colombia. ZooKeys 443:35-44. (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); Fernández et al., 2017Fernández, F., V. Castro, J. Rodríguez, C. Waichert & J.P. Pitts 2017. Avispas cazadoras de arañas de Colombia (Hymenoptera: Pompilidae). Proceditor Ltda., Bogotá, D. C., Colombia. (distribution); 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 Alasagenia pilifrons: - Banks, 1946Banks, N. 1946. Studies of South American Psammocharidae. Part 1. Bulletin of the Museum of Comparative Zoology at Harvard College 96:311-525. (distribution), 453 (key), 456 (comb. nov.). - As Phanochilus pilifrons: - Banks, 1944Banks, N. 1944. The Psammocharidae (Hymenoptera) taken at Kartabo and other localities in British Guiana. Zoologica 29:97-112. (distribution), 108 (comb. nov.).