Pompilus gracillimus Smith, 1855:150, ♂. Holotype ♂, Brazil (Santarem) (leg. H. W. Bates). - Fox, 1897Fox, W.J. 1897. Contributions to a knowledge of the Hymenoptera of Brazil, No. 2. - Pompilidae. Proceedings of the Academy of Natural Sciences of Philadelphia 49:229-283. (distribution), 253 (listed); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 292 (listed). - As Priochilus gracillimus: - Auko & Silvestre, 2013Auko, T.H. & R. Silvestre 2013. Composição faunística de vespas (Hymenoptera: Vespoidea) na Floresta Estacional do Parque Nacional da Serra da Bodoquena, Brasil. Biota Neotrop. 13 (1):292-299. (distribution); Silvestre et al., 2014Silvestre, R., M.F. Demétrio, B.M. Trad, F. Varussa & O. Lima 2014. Diversity and distribution of Hymenoptera Aculeata in Midwestern Brazilian dry forests. In: Greer, F.E. (Ed.). Dry Forests. 29-80. (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).
Pompilus scrupulus Fox, 1897:252, ♀. 9 ♀♀, Santarem. - Fox, 1897Fox, W.J. 1897. Contributions to a knowledge of the Hymenoptera of Brazil, No. 2. - Pompilidae. Proceedings of the Academy of Natural Sciences of Philadelphia 49:229-283.:260 (key [key to the new described species]); Pate, 1946Pate, V.S.L. 1946. The generic names of the spider wasps (Psammocharidae olim Pompiloidae) and their type species. Transactions of the American Entomological Society 72:65-137.:88 (listed); Banks, 1946Banks, N. 1946. Studies of South American Psammocharidae. Part 1. Bulletin of the Museum of Comparative Zoology at Harvard College 96:311-525.:518 (listed). - As Priochilus scrupulum: - Evans, 1966Evans, H.E. 1966. A revision of the Mexican and central American spider wasps of the subfamily Pompilinae (Hymenoptera: Pompilidae). Memoirs of the American Entomological Society :1-442. (distribution); Cambra et al., 2004Cambra, R.A., D.A. Quintero & R.J. Miranda 2004. Presas, comportamiento de anidación y nuevos registros de distribución en Pompílidos Neotropicales (Hymenoptera: Pompilidae). Tecnociencia 6 (1):95-109. (distribution); Rasmussen & Asenjo, 2009Rasmussen, C. & A. Asenjo 2009. A checklist to the wasps of Peru (Hymenoptera, Aculeata). ZooKeys 15:1-78. (distribution); 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); Silvestre et al., 2014Silvestre, R., M.F. Demétrio, B.M. Trad, F. Varussa & O. Lima 2014. Diversity and distribution of Hymenoptera Aculeata in Midwestern Brazilian dry forests. In: Greer, F.E. (Ed.). Dry Forests. 29-80. (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 gracillimus (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); Kurczewski et al., 2020Kurczewski, F.E., R.C. West, C. Waichert, K.C. Kissane, D. Ubick & J.P. Pitts 2020. New and unusual host records for North American and South American spider wasps (Hymenoptera: Pompilidae). Zootaxa 4891 (1):1-112. (distribution), 59 (prey); 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 Priochilus scrupulus: - Banks, 1944Banks, N. 1944. The Psammocharidae (Hymenoptera) taken at Kartabo and other localities in British Guiana. Zoologica 29:97-112. (distribution), 104 (key female), 105 (listed); Banks, 1946Banks, N. 1946. Studies of South American Psammocharidae. Part 1. Bulletin of the Museum of Comparative Zoology at Harvard College 96:311-525.:518 (listed).
Aporoideus clarus Banks, 1940:359, ♂♀. Paratype 1 ♀, Ifanadiana (M.C.Z.); Paratype 1 ♀, Fianarantsoa (M.C.Z.); Paratype 1 ♀, 1 ♂, Ifanadiana (K.V.K.); Type ♀, dry region northwest of Madagascar (Academy of Natural Sciences of Philadelphia, no. 5003); Evans, 1966Evans, H.E. 1966. A revision of the Mexican and central American spider wasps of the subfamily Pompilinae (Hymenoptera: Pompilidae). Memoirs of the American Entomological Society :1-442.:157, Type ♂ (MCZ, no. 26,701); Day, 1981Day, M.C. 1981. A revision of Pompilus Fabricius (Hymenoptera: Pompilidae), with further nomenclatural and biological considerations. Bull. Br. Mus. Nat. Hist. (Ent.) 42 (1):1-42.:13, Holotype ♀, Madagascar, examined (Academy of Natural Sciences, Philadelphia). Synonymized with Pompilus cinereus (Fabricius, 1775) by Day, 1981Day, M.C. 1981. A revision of Pompilus Fabricius (Hymenoptera: Pompilidae), with further nomenclatural and biological considerations. Bull. Br. Mus. Nat. Hist. (Ent.) 42 (1):1-42.:13. Synonymized with Priochilus scrupulum (Fox, 1897) by Evans, 1966Evans, H.E. 1966. A revision of the Mexican and central American spider wasps of the subfamily Pompilinae (Hymenoptera: Pompilidae). Memoirs of the American Entomological Society :1-442.:157. - As Priochilus clarus: - Banks, 1946Banks, N. 1946. Studies of South American Psammocharidae. Part 1. Bulletin of the Museum of Comparative Zoology at Harvard College 96:311-525.:519 (listed); 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).