Ceropales femoralis Cresson, 1869:378, Holotype ♀, Orizaba (Am. Ent. Soc., leg. Prof. F. Sumichrast); Townes, 1957Townes, H. 1957. Nearctic wasps of the subfamilies Pepsinae and Ceropalinae. Bulletin of the United States National Museum 209:1-286.:266, Type ♂ (Philadelphia). - Cameron, 1888-1900Cameron, P. 1888-1900. Biologia Centrali-Americana - Insecta. Hymenoptera. (Fossores) Vol. II. R. H. Porter and Dulau & Co., London. 413pp, 14 pl.:159 (listed); Cameron, 1891Cameron, P. 1891. Biologia Centrali-Americana. Insecta. Hymenoptera. (Fossores) Vol. II. :130-176. (distribution); Fox, 1892Fox, W. 1892. The North American species of Ceropales, with a catalogue of the described species of the world. Transactions of the American Entomological Society 19:49-63. (distribution), 50 (key female, key male), 55 (description female, description male); Dalla Torre, 1895Dalla Torre, K.W.von 1895. Ueber die Gattung Ceropales. Wiener Entomologische Zeitung 14 (III):90-92.:91 (listed); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 342 (listed); Dreisbach, 1948Dreisbach, R.R. 1948. The description of a new species of the genus Ceropales (Hymenoptera: Psammocharidae) with a key to the species of North America. Journal of the New York Entomological Society 56:233-238.:235 (key to the species of North America), 237 (key to the species of North America); Townes, 1957Townes, H. 1957. Nearctic wasps of the subfamilies Pepsinae and Ceropalinae. Bulletin of the United States National Museum 209:1-286. (distribution), 266 (listed); 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. (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); Móczár, 1990Móczár, L. 1990. Revision of the subgenus Bifidoceropales Priesner of the Genus Ceropales Latreille (Hymenoptera: Ceropalidae). Acta zool. Hungarica 36:59-85. (distribution), 73 (listed); 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).
Ceropales foxii Rohwer, 1916:369, ♂. Type 1 ♂, Falls Church, Va., July 22 (U.S.N.M., Cat. No. 20118, leg. S. A. Rohwer); Townes, 1957Townes, H. 1957. Nearctic wasps of the subfamilies Pepsinae and Ceropalinae. Bulletin of the United States National Museum 209:1-286.:266, Type ♂ (Washington); SNMNH, 2021Smithsonian National Museum of Natural History 2021. Online Entomology Collection Database. ., Type ♂, Virginia, Arlington, East Falls Church, Jul 1922 (Smithsonian National Museum of Natural History, USNMENT 1559071, leg. Rohwer, S. A.). - Dreisbach, 1948Dreisbach, R.R. 1948. The description of a new species of the genus Ceropales (Hymenoptera: Psammocharidae) with a key to the species of North America. Journal of the New York Entomological Society 56:233-238.:235 (key to the species of North America); Townes, 1957Townes, H. 1957. Nearctic wasps of the subfamilies Pepsinae and Ceropalinae. Bulletin of the United States National Museum 209:1-286.:266 ( listed as synonym of Ceropales femoralis Cresson, 1869); 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.:1569 ( listed as synonym of Ceropales femoralis Cresson, 1869); Móczár, 1990Móczár, L. 1990. Revision of the subgenus Bifidoceropales Priesner of the Genus Ceropales Latreille (Hymenoptera: Ceropalidae). Acta zool. Hungarica 36:59-85.:73 ( listed as synonym of Ceropales femoralis Cresson, 1869). - As Ceropales foxi: - Dreisbach, 1948Dreisbach, R.R. 1948. The description of a new species of the genus Ceropales (Hymenoptera: Psammocharidae) with a key to the species of North America. Journal of the New York Entomological Society 56:233-238.:238 (key to the species of North America).