Ceropales nigripes Cresson, 1867:139, ♀. Holotype ♀, Dakota Territory (Am. Ent. Soc.). - Cresson, 1872Cresson, E.T. 1872. Hymenoptera Texana. Transactions of the American Entomological Society 4:153-292. (distribution); 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.:273 (listed); 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), 49 (key female), 51 (description female); 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), 344 (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.:234 (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.:259 (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), 78 (listed); Evans, 1997Evans, H.E. 1997. Spider wasps of Colorado (Hymenoptera, Pompilidae): An annotated checklist. The Great Basin Naturalist 57 (3):189-197. (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 Ceratopales nigripes: - Banks, 1919Banks, N. 1919. The Psammocharidae of western North America. Bull. Mus. Comp. Zool. 63:229-248. (distribution), 248 (key, listed).
Ceropales texana Cresson, 1872:208, ♂. Holotype ♂, Texas (G.W. Belfrage); Townes, 1957Townes, H. 1957. Nearctic wasps of the subfamilies Pepsinae and Ceropalinae. Bulletin of the United States National Museum 209:1-286.:259, Type ♂ (Washington); SNMNH, 2021Smithsonian National Museum of Natural History 2021. Online Entomology Collection Database. ., Type ♂, Texas (Smithsonian National Museum of Natural History, USNMENT 1546930, leg. Belfrage). - Patton, 1879Patton, W. 1879. List of a Collection of Aculeate Hymenoptera made by Mr. S. W. Williston in Northwestern Kansas. Bulletin of the United States Geological and Geographical Survey of the Territories / D 2 (V):349-370. (distribution); 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.:273 (listed); 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 male), 51 (description male); Dalla Torre, 1895Dalla Torre, K.W.von 1895. Ueber die Gattung Ceropales. Wiener Entomologische Zeitung 14 (III):90-92.:92 (listed); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:345 (listed); Townes, 1957Townes, H. 1957. Nearctic wasps of the subfamilies Pepsinae and Ceropalinae. Bulletin of the United States National Museum 209:1-286.:259 ( listed as synonym of Ceropales nigripes Cresson, 1867); 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.:1570 ( listed as synonym of Ceropales nigripes Cresson, 1867); Móczár, 1990Móczár, L. 1990. Revision of the subgenus Bifidoceropales Priesner of the Genus Ceropales Latreille (Hymenoptera: Ceropalidae). Acta zool. Hungarica 36:59-85.:78 ( listed as synonym of Ceropales nigripes Cresson, 1867). - As Ceropales texanus: - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 345 (listed).