Pompilus 2 guttatus Fabricius, 1798:249, sex not indicated.America septentrionali (Mus. Dom. Bosc.); Evans, 1950Evans, H.E. 1950. A taxonomic study of the Nearctic spider wasps belonging to the tribe Pompilini (Hymenoptera: Pompilidae). Part 1. Transactions of the American Entomological Society 75:133-270.:226, Type ♀. - As Episyron biguttatus biguttatus: - Evans, 1950Evans, H.E. 1950. A taxonomic study of the Nearctic spider wasps belonging to the tribe Pompilini (Hymenoptera: Pompilidae). Part 1. Transactions of the American Entomological Society 75:133-270. (distribution), 216 (key female), 217 (key male), 228 (biology); Kurczewski, 1962Kurczewski, F.E. 1962. Observations, including new prey records, of some Nearctic Pompilidae (Hymenoptera). Bulletin of the Brooklyn Entomological Society 57 (4):85-90. (distribution), 88 (prey); Krombein, 1963Krombein, K.V. 1963. Natural history of Plummers Island, Maryland. XVII. Annotated list of the wasps (Hymenoptera: Bethyloidea, Scolioidea, Vespoidea, Pompiloidea, Sphecoidea). Proceedings of the Biological Society of Washington 76:255-280. (distribution); Kurczewski & Kurczewski, 1968Kurczewski, F.E. & E.J. Kurczewski 1968. Host records for some North American Pompilidae (Hymenoptera). First supplement. Journal of the Kansas Entomological Society 41 (3):367-382. (distribution), 369 (hosts); Kurczewski & Kurczewski, 1968Kurczewski, F.E. & E.J. Kurczewski 1968. Host records for some North American Pompilidae (Hymenoptera) with a discussion of factors in prey selection. Journal of the Kansas Entomological Society 41 (1):1-33. (distribution), 9 (hosts); Kurczewski & Kurczewski, 1973Kurczewski, F.E. & E.J. Kurczewski 1973. Host records for some North American Pompilidae (Hymenoptera). Third supplement. Tribe Pompilini. Journal of the Kansas Entomological Society 46 (1):65-81.:66 (hosts); 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. (distribution); Hook et al., 1990Hook, A.W., H.E. Evans & J.E. Gillaspy 1990. Pompilid wasps of Brackridge Field Laboratory and of the Greater Austin Area. Sphecos 20:17-18. (distribution); Evans, 1997Evans, H.E. 1997. Spider wasps of Colorado (Hymenoptera, Pompilidae): An annotated checklist. The Great Basin Naturalist 57 (3):189-197. (distribution); Leavengood, Jr. J.M. et al., 2011Leavengood, Jr. J.M., Waichert, C. & Rodriguez, J. 2011. A distributional checklist of the spider wasps (Hymenoptera: Pompilidae) of Florida. Insecta Mundi 0161 (March 2011):1-8. (distribution); Leavengood et al., 2011Leavengood, J.M., C.Waichert & J. Rodriguez 2011. A distributional checklist of the spider wasps (Hymenoptera: Pompilidae) of Florida. Insecta Mundi 0161:1-8. (distribution); Vanoye-Eligio et al., 2021Vanoye-Eligio, M., M. del C. Gómez-Camal, B. del R. Martín-Canché, M. Rosas-Mejía, J.V. HortaVega & V. Vanoye-Eligio 2021. Current knowledge of the family Pompilidae (Hymenoptera: Vespoidea) in Mexico: diversity and geographical distribution. Zootaxa 5071 (4):505-536. (distribution). - As Pompilus biguttatus: - Fabricius, 1804Fabricius, J.C. 1804. Systema Piezatorum secundum Ordines, Genera, Species adiectis Synonymis, Locis, Observationibus, Descriptionibus. Apud Carolum Reichard, Brunsvigae. xiv + 440 + 30 pp.:193 (listed); Say, 1836Say, T. 1836. Descriptions of new North American Hymenoptera, and observations on some already described. Boston Journal of Natural History 1 (3):209-305.:303 (listed); Smith, 1855Smith, F. 1855. Catalogue of Hymenopterous Insects in the collection of the British Museum. Part III, Mutillidae and Pompilidae. :203 pp, 5 pl.:158 (listed); Cresson, 1867Cresson, E.T. 1867. Notes on the Pompilidæ of North America, with descriptions of new species. Transactions of the American Entomological Society 1 (1867/1868):85-150. (distribution), 96 (listed); Provancher, 1882Provancher, L. 1882. Faune Canadienne (Continué de la page 15.). Naturaliste Canadien 13 (146):33-51.:40 (description female, description male); Cresson, 1887Cresson, E.T. 1887. Synopsis of the families and genera of the Hymenoptera of America, North of Mexico. Transactions of the American Entomological Society Supplementary Volume:1-350. (distribution), 270 (listed); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:276 (listed); Kohl, 1906Kohl, F.F. 1906. Zoologische Ergebnisse der Expedition der Kaiserlichen Akademie der Wissenschaften nach Südarabien und Sokotra im Jahre 1898-1899. Hymenopteren. Denkschr. Akad. Wiss. Wien, Math.-naturw. Kl. 71:169-301.:269 (listed); Wahis, 2005Wahis, R. 2005. Datenbank Europa der Pompilidae. :. ( listed as synonym of Anoplius samariensis (Pallas, 1771)). - As Pompilus biguttulatus: - Ashmead, 1904Ashmead, W.H. 1904. Classification of the fossorial, predaceous and parasitic wasps of the superfamily Vespoidea. Part 4. . The Canadian Entomologist 36:5-9.:81 (comb. nov.); 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.:108 (listed). - As Spilopompilus biguttulatus:
Episyron atrytone Banks, 1911:229, ♀.Fedor, Lee Co., Texas, April (leg. Birkmann); Evans, 1950Evans, H.E. 1950. A taxonomic study of the Nearctic spider wasps belonging to the tribe Pompilini (Hymenoptera: Pompilidae). Part 1. Transactions of the American Entomological Society 75:133-270.:226, Type ♀ (M.C.Z., no. 13,665). Synonymized with Episyron biguttatus biguttatus (Fabricius, 1798) by Evans, 1950Evans, H.E. 1950. A taxonomic study of the Nearctic spider wasps belonging to the tribe Pompilini (Hymenoptera: Pompilidae). Part 1. Transactions of the American Entomological Society 75:133-270.:226. - 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.:1549 ( listed as synonym of Episyron biguttatus biguttatus (Fabricius, 1798)).