Pompilus nigro-cyaneus Guérin, 1830:259, Wahis, 2002Wahis, R. 2002. Notes taxionomiques sur quelques Pompilides du Chili (Hymenoptera, Pompilidae). Notes Fauniques de Gembloux 47:59-67.:65, Holotype ♀, Chili, examined (Genova); Wahis, 2002Wahis, R. 2002. Notes taxionomiques sur quelques Pompilides du Chili (Hymenoptera, Pompilidae). Notes Fauniques de Gembloux 47:59-67.:65, Holotype ♀ (Genova). - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 306 (listed); Wahis, 2002Wahis, R. 2002. Notes taxionomiques sur quelques Pompilides du Chili (Hymenoptera, Pompilidae). Notes Fauniques de Gembloux 47:59-67.:65 (listed); Wahis & Rojas, 2003Wahis, R. & F. Rojas 2003. Los Pompilidos de Chile (Hymenoptera: Pompilidae). Rev. Chilena Ent. 29:89-103.:94 (listed). - As Pompilus nigro-cyaneus: - Smith, 1855Smith, F. 1855. Catalogue of Hymenopterous Insects in the collection of the British Museum. Part III, Mutillidae and Pompilidae. :203 pp, 5 pl.:154 (listed); Wahis & Rojas, 2003Wahis, R. & F. Rojas 2003. Los Pompilidos de Chile (Hymenoptera: Pompilidae). Rev. Chilena Ent. 29:89-103.:94 (listed). - As Priochilus nigrocyaneus: - Wahis, 2002Wahis, R. 2002. Notes taxionomiques sur quelques Pompilides du Chili (Hymenoptera, Pompilidae). Notes Fauniques de Gembloux 47:59-67. (distribution), 65 (comb. nov.); Wahis & Rojas, 2003Wahis, R. & F. Rojas 2003. Los Pompilidos de Chile (Hymenoptera: Pompilidae). Rev. Chilena Ent. 29:89-103. (distribution), 94 (distribution, listed, taxonomy); 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).
Pompilus pectoralis Smith, 1855:151, ♀. Holotype ♀, Brazil (Para) (leg. H. W. Bates); Wahis, 2002Wahis, R. 2002. Notes taxionomiques sur quelques Pompilides du Chili (Hymenoptera, Pompilidae). Notes Fauniques de Gembloux 47:59-67.:65, Holotype ♀, Brazil: Para, examined (London); Wahis, 2002Wahis, R. 2002. Notes taxionomiques sur quelques Pompilides du Chili (Hymenoptera, Pompilidae). Notes Fauniques de Gembloux 47:59-67.:65, Holotype ♀ (London, n 19.722). Synonymized with Priochilus nigrocyaneus (Guérin, 1838) by Wahis, 2002Wahis, R. 2002. Notes taxionomiques sur quelques Pompilides du Chili (Hymenoptera, Pompilidae). Notes Fauniques de Gembloux 47:59-67.:65. - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 310 (listed); Wahis & Rojas, 2003Wahis, R. & F. Rojas 2003. Los Pompilidos de Chile (Hymenoptera: Pompilidae). Rev. Chilena Ent. 29:89-103.:94 ( listed as synonym of Priochilus nigrocyaneus (Guérin, 1838)).
Priochilus imperius Banks, 1944:105, ♀. 1 ♀, Kamakusa (Lang) (leg. Bequaert); 1 ♀, Kartabo, June 24 (leg. Beebe); Wahis, 2002Wahis, R. 2002. Notes taxionomiques sur quelques Pompilides du Chili (Hymenoptera, Pompilidae). Notes Fauniques de Gembloux 47:59-67.:65, Holotype ♀, British Guyana: Kamakusa, examined (Cambridge). Synonymized with Priochilus nigrocyaneus (Guérin, 1838) by Wahis, 2002Wahis, R. 2002. Notes taxionomiques sur quelques Pompilides du Chili (Hymenoptera, Pompilidae). Notes Fauniques de Gembloux 47:59-67.:65. - Banks, 1944Banks, N. 1944. The Psammocharidae (Hymenoptera) taken at Kartabo and other localities in British Guiana. Zoologica 29:97-112. (distribution), 104 (key female); Banks, 1946Banks, N. 1946. Studies of South American Psammocharidae. Part 1. Bulletin of the Museum of Comparative Zoology at Harvard College 96:311-525.:515 (listed); Fernández, 2000Fernández-C., F 2000. Nuevos registros de avispas Sphecidae y Pompilidae (Hymenoptera: Apoidea, Vespoidea) para Colombia. Caldasia 22 (1):142-145. (distribution); Wahis & Rojas, 2003Wahis, R. & F. Rojas 2003. Los Pompilidos de Chile (Hymenoptera: Pompilidae). Rev. Chilena Ent. 29:89-103.:94 ( listed as synonym of Priochilus nigrocyaneus (Guérin, 1838)); Rasmussen & Asenjo, 2009Rasmussen, C. & A. Asenjo 2009. A checklist to the wasps of Peru (Hymenoptera, Aculeata). ZooKeys 15:1-78. (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.:39 ( listed as synonym of Priochilus pectoralis (Smith, 1855)); 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); Waichert et al., 2017Waichert, C., F. Fernández, V. Castro-Huertas, J. Rodriguez & J.P. Pitts 2017. More new records of spider wasps from Colombia (Hymenoptera, Pompilidae). ZooKeys 658:89-95. (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).