Pompilus amoenus Taschenberg, 1869:63, ♂. ♂, Nov. Frib. (Museum der Universität zu Halle); 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.:428, Type ♂ (Univ. Halle, Germany). - 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.:428 ( listed as synonym of Paracyphononyx unicolor (Smith, 1879)). - As Anacyphononyx amoenus: - Haupt, 1950Haupt, H. 1950. Pompilidae (Hymenoptera Sphecoidea). Exploration du Parc National Albert. Mission G. F. De Witte (1933-1935) 69:1-63.:59 (comb. nov.). - As Pompilus amoeno: - Brèthes, 1913Brèthes, J. 1913. Himenópteros de la América meridional. Anales Museo nacional de historia natural de Buenos Aires 24:35-165.:119 ( listed as synonym of Pompilus amoenissimus Dalla Torre, 1897).
Pompilus unicolor Smith, 1879:154, ♂♀.Guatemala, 5000 feet; Guyaquil (British Museum); 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.:429, Plesiallotype ♂ (USNM); 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.:428, Type ♀ (BMNH, no. 19,696). - Cameron, 1888-1900Cameron, P. 1888-1900. Biologia Centrali-Americana - Insecta. Hymenoptera. (Fossores) Vol. II. R. H. Porter and Dulau & Co., London. 413pp, 14 pl.:198 (listed); Cameron, 1893Cameron, P. 1893. Biologia Centrali-Americana. Insecta. Hymenoptera. (Fossores) Vol. II. :177-257. (distribution), 198 (listed). - As Paracyphononyx unicolor: - 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), 428 (comb. nov.); Waichert et al., 2014Waichert, C., Rodriguez, J. & J.P. Pitts 2014. New additions to the Honduran fauna of spider wasps (Hymenoptera: Pompilidae) with the description of two species. Zootaxa 3873 (5):590-600. (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 amoenissimus Dalla Torre, 1897:272, no descr. Replacement name for Pompilus amoenus Taschenberg, 1869 by Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:272 (nec Klug). Synonymized with Paracyphononyx unicolor (Smith, 1879) 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.:428. - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:272 (comb. nov.); Brèthes, 1909Brèthes, J. 1909. Himenópteros de Mendoza y de San Luis. Ann. Mus. Nac. Buenos Aires ser. 3 (10):455-463. (distribution). - As Allocyphonyx amoenissimus: - Banks, 1947Banks, N. 1947. Studies of South American Psammocharidae. Part 2. Museum of Comparative Zoology at Harvard College, Bulletin 99:371-486.:445 (listed). - As Paracyphononyx amoenissimus: - 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 monochrous Dalla Torre, 1897:303, no descr. Replacement name for Pompilus unicolor Smith, 1879 by Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:303 (nec Linden). Synonymized with Paracyphononyx unicolor (Smith, 1879) 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.:428. - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 303 (listed).
Pompilus sulcatus Fox, 1897:255, ♀. Holotype ♀, Santarem. Synonymized with Paracyphononyx unicolor (Smith, 1879) 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.:428. - 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]). - As Allocyphonyx sulcatus: - Banks, 1947Banks, N. 1947. Studies of South American Psammocharidae. Part 2. Museum of Comparative Zoology at Harvard College, Bulletin 99:371-486.:444 (listed). - As Paracyphononyx sulcatus: - 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).