Sphex heros Fabricius, 1798:245, sex not indicated, Lectotype ♀, Cayenne, examined (Muséum National d’Histoire Naturelle, Paris), designated by Vardy, 2000Vardy, C.R. 2000. The New World tarantula-hawk wasp genus Pepsis Fabricius (Hymenoptera: Pompilidae). Part 1. Introduction and the P. rubra species-group. Zool. Verh. Leiden 332:1-86.:59. - Fabricius, 1804Fabricius, J.C. 1804. Systema Piezatorum secundum Ordines, Genera, Species adiectis Synonymis, Locis, Observationibus, Descriptionibus. Apud Carolum Reichard, Brunsvigae. xiv + 440 + 30 pp.:213 (listed); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:255 (listed); Vardy, 2000Vardy, C.R. 2000. The New World tarantula-hawk wasp genus Pepsis Fabricius (Hymenoptera: Pompilidae). Part 1. Introduction and the P. rubra species-group. Zool. Verh. Leiden 332:1-86.:59 (listed). - As Pepsis heros: - Fabricius, 1804Fabricius, J.C. 1804. Systema Piezatorum secundum Ordines, Genera, Species adiectis Synonymis, Locis, Observationibus, Descriptionibus. Apud Carolum Reichard, Brunsvigae. xiv + 440 + 30 pp.:213 (listed); Blanchard, 1840Blanchard, E. 1840. Histoire naturelle des insectes: orthoptères, hyménoptères, lepidoptères et diptères. Histoire Naturelle des Animaux Articulés Annelides, Crustacés, Arachnides, Myriapodes et Inséctes, volume 3. :672 pp.:355 (listed); Dahlbom, 1845Dahlbom, A.G. 1845. Hymenoptera Europaea Praecipue Borealia-per familias, genera, species et varietates disposita atque descripta. Sphex Linn. Fasciculus III.: Crabronidarum continuatio et finis, Supplementum I. 353-528.:465 (listed); Costa, 1866Costa, A. 1866. Anno III. - 1863. Annuario del Museo Zoologico della R. Università di Napoli :90 pp + 4 Tavole. (distribution); Mocsáry, 1885Mocsáry, A. 1885. Species novae vel minus cognitae generis Pepsis, Fabr. Termeszetrajzi Füzetek 9:236-271. (distribution); Lucas, 1895Lucas, R. 1895. Die Pompiliden-Gattung Pepsis. Berliner Entomologische Zeitschrift 39 (4):449-840. (distribution), 793 ( listed as synonym of Pepsis marginata Palisot de Beauvois, 1809); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 255 (listed); Ashmead, 1900Ashmead, W.H. 1900. Report upon the aculeate Hymenoptera of the islands of St. Vincent and Grenada, with additions to the parasitic Hymenoptera and a list of the described Hymenoptera of the West Indies. Transactions of the Entomological Society of London pt. II:207-367. (distribution); Lucas, 1919Lucas, R. 1919. Pompiliden-Studien. I. Arch. Naturgesch., A. 83 (5):1-180+3 pls. (distribution); 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), 338 (key female), 339 (listed); Hurd, 1952Hurd, P.D. Jr. 1952. Revision of the Nearctic species of the pompilid genus Pepsis (Hymenoptera, Pompilidae). The American Museum of Natural History, Bulletin 98 (article 4):261-334. (distribution); Vardy, 2000Vardy, C.R. 2000. The New World tarantula-hawk wasp genus Pepsis Fabricius (Hymenoptera: Pompilidae). Part 1. Introduction and the P. rubra species-group. Zool. Verh. Leiden 332:1-86. (distribution), 33 (key male), 56 (key female), 59 (description female, description male, listed), 60 (biology, distribution); Rasmussen & Asenjo, 2009Rasmussen, C. & A. Asenjo 2009. A checklist to the wasps of Peru (Hymenoptera, Aculeata). ZooKeys 15:1-78. (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); 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), 10 (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); Kurczewski et al., 2022Kurczewski, F.E., R.C. West, C. Waichert & J.P. Pitts 2022. Additional new and unusual host records for Western Hemisphere spider wasps (Hymenoptera: Pompilidae). Insecta Mundi 0928:1-32. (distribution, hosts); Kurczewski et al., 2024Kurczewski, F.E., R.C. West & C. Waichert 2024. New host records for Nearctic and Neotropical spider wasps (Hymenoptera: Pompilidae). Insecta Mundi 1034:1-32. (distribution, hosts [Theraphosa blondi (Latreille) (Theraphosidae)]). - As Pepsis heros: - Dewitz, 1881Dewitz, H. 1881. Hymenopteren von Portorico. Berliner Entomologische Zeitschrift 25:197-208. (distribution), 203 (listed); Gundlach, 1887Gundlach, J. 1887. Apuntes para la fauna Puerto-Riqueña. Anales de la Sociedad Española de Historia Natural 16 (1):115-199. (distribution); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:256 ( listed as synonym of Pepsis marginata Palisot de Beauvois, 1809); Hurd, 1952Hurd, P.D. Jr. 1952. Revision of the Nearctic species of the pompilid genus Pepsis (Hymenoptera, Pompilidae). The American Museum of Natural History, Bulletin 98 (article 4):261-334.:299 ( listed as synonym of Pepsis marginata Palisot de Beauvois, 1809), 320 ( listed as synonym of Pepsis marginata Palisot de Beauvois, 1809); Townes, 1957Townes, H. 1957. Nearctic wasps of the subfamilies Pepsinae and Ceropalinae. Bulletin of the United States National Museum 209:1-286.:30 ( listed as synonym of Pepsis marginata Palisot de Beauvois, 1809); Krombein, 1958Krombein, K.V. 1958. Family Pompilidae. In: Krombein, K.V. (Ed.). Hymenoptera of America North of Mexico - Synoptic Catalog. Washington: U.S. Department of Agriculture. Agriculture Monograph No. 2. First Supplement, 305 pp. 170-186.:171 ( listed as synonym of Pepsis marginata Palisot de Beauvois, 1809); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209.:1526 ( listed as synonym of Pepsis marginata Palisot de Beauvois, 1809). - As Pompilus heros: - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:255 (listed).
Pepsis atrata Lepeletier, 1845:470, ♀. ♀, Cayenne (Musée de M. Serville); ♀, Cayenne (Musée de M. Serville). Synonymized with Pepsis heros (Fabricius, 1798) by Vardy, 2000Vardy, C.R. 2000. The New World tarantula-hawk wasp genus Pepsis Fabricius (Hymenoptera: Pompilidae). Part 1. Introduction and the P. rubra species-group. Zool. Verh. Leiden 332:1-86.:59. - Smith, 1855Smith, F. 1855. Catalogue of Hymenopterous Insects in the collection of the British Museum. Part III, Mutillidae and Pompilidae. :203 pp, 5 pl. (distribution), 198 (listed); Lucas, 1895Lucas, R. 1895. Die Pompiliden-Gattung Pepsis. Berliner Entomologische Zeitschrift 39 (4):449-840. (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), 247 (listed); Lucas, 1919Lucas, R. 1919. Pompiliden-Studien. I. Arch. Naturgesch., A. 83 (5):1-180+3 pls. (distribution); 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), 338 (key female), 344 (description female, listed), 345 (description male), 402 (key male); Hurd, 1952Hurd, P.D. Jr. 1952. Revision of the Nearctic species of the pompilid genus Pepsis (Hymenoptera, Pompilidae). The American Museum of Natural History, Bulletin 98 (article 4):261-334. (distribution).
Pepsis magnifica Montet, 1921:212, ♀. 2 ♀♀, Guyane francaise (Muséum d'Histoire Naturelle de Genève), Lectotype ♀, examined (Museum d’Histoire Naturelle, Geneva), designated by Vardy, 2000Vardy, C.R. 2000. The New World tarantula-hawk wasp genus Pepsis Fabricius (Hymenoptera: Pompilidae). Part 1. Introduction and the P. rubra species-group. Zool. Verh. Leiden 332:1-86.:59. Synonymized with Pepsis heros (Fabricius, 1798) by Vardy, 2000Vardy, C.R. 2000. The New World tarantula-hawk wasp genus Pepsis Fabricius (Hymenoptera: Pompilidae). Part 1. Introduction and the P. rubra species-group. Zool. Verh. Leiden 332:1-86.:59. - Hurd, 1952Hurd, P.D. Jr. 1952. Revision of the Nearctic species of the pompilid genus Pepsis (Hymenoptera, Pompilidae). The American Museum of Natural History, Bulletin 98 (article 4):261-334. (distribution).