Pompilus semiplumbeus Taschenberg, 1869:66, ♂♀. ♀, ♂, Congonh, Parana (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.:431, Type ♀ (Univ. Halle, Germany). - Holmberg, 1881Holmberg, E.L. 1881. Sobre las especies Argentinas del género Pompilus. Anales de la Sociedad Científica Argentina 12:131-144. (distribution); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 326 ( listed as synonym of Pompilus taschenbergianus Dalla Torre, 1897); Banks, 1947Banks, N. 1947. Studies of South American Psammocharidae. Part 2. Museum of Comparative Zoology at Harvard College, Bulletin 99:371-486.:438 (listed). - As Allocyphonyx semiplumbeus: - Banks, 1947Banks, N. 1947. Studies of South American Psammocharidae. Part 2. Museum of Comparative Zoology at Harvard College, Bulletin 99:371-486.:438 (listed). - As Anacyphononyx semiplumbeus: - 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 Paracyphononyx semiplumbeus: - 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); 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 Pompilus semiplumbeus ♀: - Holmberg, 1881Holmberg, E.L. 1881. Sobre las especies Argentinas del género Pompilus. Anales de la Sociedad Científica Argentina 12:131-144.:138 (listed).
Pompilus iratus Smith, 1873:444, ♂. ♂, Para (leg. H. W. Bates); 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.:431, Type ♂ (BMNH, no. 19,566). Synonymized with Paracyphononyx semiplumbeus (Taschenberg, 1869) 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.:431. - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 296 (listed).
Pompilus boucardi Cameron, 1893:204,Panama (leg. Boucard); 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.:431, Type ♂ (BMNH, no. 19,704). Synonymized with Paracyphononyx semiplumbeus (Taschenberg, 1869) 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.:431. - Cameron, 1888-1900Cameron, P. 1888-1900. Biologia Centrali-Americana - Insecta. Hymenoptera. (Fossores) Vol. II. R. H. Porter and Dulau & Co., London. 413pp, 14 pl.:204 (listed). - As Pompilus boucardii: - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 277 (listed).