Sphex pensylvanica Linnaeus, 1763:412, sex not indicated.Pensylvania (leg. De Geer). - Fabricius, 1781Fabricius, J.C. 1781. Species Insectorum exhibentes eorum differentiae specificas, synonyma, auctorum, locanatalia, metamorphosin. Vol. 1. Hamburgi et Kilonii. iii-viii + 552 pp.:443 (listed); Fabricius, 1787Fabricius, J.C. 1787. Mantissa insectorum sistens species nuper detectas adiectis characteribus genericis, differentiis specificis, emendationibus, observationibus. Tome I. Proft, Hafniae [=Copenhagen]. 348 pp.:274 (listed); Fabricius, 1793Fabricius, J.C. 1793. Entomologia Systematica emendata et aucta. Vol. 2. Christian Gottlieb Proft, Hafniae. viii + 519 pp.:201 (listed); Fabricius, 1804Fabricius, J.C. 1804. Systema Piezatorum secundum Ordines, Genera, Species adiectis Synonymis, Locis, Observationibus, Descriptionibus. Apud Carolum Reichard, Brunsvigae. xiv + 440 + 30 pp.:211 (listed); Vardy, 2005Vardy, C.R. 2005. The New World tarantula-hawk wasp genus Pepsis Fabricius (Hymenoptera: Pompilidae). Part 3. The P. inclyta- to P. auriguttata-groups. Zoologische Mededelingen Leiden 79 (5):1-305.:290 (listed). - As Chlorion pensylvanicum: - Fernald, 1906Fernald, H.T. 1906. The digger wasps of North America and the West Indies belonging to the subfamily Chorioninae. Proceedings of the United States National Museum 31:291-423. (distribution); Fernald, 1942Fernald, H.T. 1942. Annotated list of Florida Sphecinae (Hym., Sphecidae). Entomological News 53 (10):286-291. (distribution). - As Pepsis pensylvanica: - Fabricius, 1804Fabricius, J.C. 1804. Systema Piezatorum secundum Ordines, Genera, Species adiectis Synonymis, Locis, Observationibus, Descriptionibus. Apud Carolum Reichard, Brunsvigae. xiv + 440 + 30 pp.:211 (listed); Latreille, 1809Latreille, P.A. 1809. Genera Crustaceorum et Insectorum secundum ordinem natrualem in familias disposita, iconibus exemplisque plurimis explicata, IV. Parisiis et Argentorat., König.:56 ( listed as synonym of Pepsis flavipennis (Fabricius, 1793)); Vardy, 2005Vardy, C.R. 2005. The New World tarantula-hawk wasp genus Pepsis Fabricius (Hymenoptera: Pompilidae). Part 3. The P. inclyta- to P. auriguttata-groups. Zoologische Mededelingen Leiden 79 (5):1-305.:290 (listed). - As Sphex pennsylvanica: - Cresson, 1872Cresson, E.T. 1872. Hymenoptera Texana. Transactions of the American Entomological Society 4:153-292. (distribution). - As Sphex pennsylvanica: - Cresson, 1872Cresson, E.T. 1872. Hymenoptera Texana. Transactions of the American Entomological Society 4:153-292. (distribution). - As Sphex pennsylvanicus: - Berland, 1929Berland, M.L. 1929. Les Sphegidae (Hyménoptères) du Muséum National de Paris. Bulletin du Muséum National d'Histoire Naturelle (Série 2) 1:309-312. (distribution). - As Sphex pennsylvanicus: - Berland, 1929Berland, M.L. 1929. Les Sphegidae (Hyménoptères) du Muséum National de Paris. Bulletin du Muséum National d'Histoire Naturelle (Série 2) 1:309-312. (distribution). - As Sphex pensylvanicus: - Kohl, 1890Kohl, F.F. 1890. Die Hymenopterengruppe der Sphecinen. I. Monographie der natürlichen Gattung Sphex Linné (sens. lat.). Annalen des Naturhistorischen Museums in Wien 5:77-194, 317-462. (distribution); 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); Amarante, 2002Amarante, S.T.P. 2002. A synonymic catalog of the neotropical Crabronidae and Sphecidae (Hymenoptera: Apoidea). Arquivos de Zoologia (São Paulo) 37:1-139. (distribution); Vardy, 2005Vardy, C.R. 2005. The New World tarantula-hawk wasp genus Pepsis Fabricius (Hymenoptera: Pompilidae). Part 3. The P. inclyta- to P. auriguttata-groups. Zoologische Mededelingen Leiden 79 (5):1-305.:290 (listed); Nava-Bolaños & Osorio-Olvera, 2022Nava-Bolaños, A. & L. Osorio-Olvera 2022. Estado del arte del conocimiento de biodiversidad de los polinizadores de México. Revista Mexicana de Biodiversidad 93:1-77. (distribution).
Sphex pensylvanicus robustisoma Strand, 1916:101 - 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.:1581 ( listed as synonym of Sphex pensylvanicus Linnaeus, 1763); Amarante, 2002Amarante, S.T.P. 2002. A synonymic catalog of the neotropical Crabronidae and Sphecidae (Hymenoptera: Apoidea). Arquivos de Zoologia (São Paulo) 37:1-139.:75 ( listed as synonym of Sphex pensylvanicus Linnaeus, 1763).