Pompilus marcidus Smith, 1862:395, ♀. ♀, Orizaba (Mexico) (National Collection); 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.:243, Type ♀ (British Museum); Evans, 1966Evans, H.E. 1966. A revision of the Mexican and central American spider wasps of the subfamily Pompilinae (Hymenoptera: Pompilidae). Memoirs of the American Entomological Society :1-442.:206, Type ♀ (BMNH, no. 19,587). - 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), 110 (listed); Cresson, 1869Cresson, E.T. 1869. Notes on Mexican Pompilidae with descriptions of new species. The Boston Society of Natural History, Proceedings 12:366-380. (distribution), 371 (listed); Cameron, 1888-1900Cameron, P. 1888-1900. Biologia Centrali-Americana - Insecta. Hymenoptera. (Fossores) Vol. II. R. H. Porter and Dulau & Co., London. 413pp, 14 pl.:211 (listed); Cameron, 1893Cameron, P. 1893. Biologia Centrali-Americana. Insecta. Hymenoptera. (Fossores) Vol. II. :177-257. (distribution), 211 (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), 300 (listed); Bradley, 1944Bradley, J.C. 1944. The generic position of certain Mexican Pompilidae (Hymenoptera), with description of a new genus. Notulae Naturae, The Academy of Natural Sciences of Philadelphia 145:1-12.:10 (listed). - As Batazonus marcidus: - Banks, 1925Banks, N. 1925. Psammocharidae from Panama. Bull. Mus. Comp. Zool. 67 (9):329-338. (distribution), 338 (listed). - As Batazonus marcidus: - Banks, 1925Banks, N. 1925. Psammocharidae from Panama. Bull. Mus. Comp. Zool. 67 (9):329-338. (distribution), 338 (listed). - As Batozonellus marcidus: - Junco y Reyes, 1963Junco y Reyes, J.J. 1963. Himenópteros de Espana. Fam. Pompilidae (=Psammocharidae) Gens. Episyron Schdt., Batozonellus Arnd., Ctenostegus Hpt., Schistonyx Sauss. y Aporinellus Bks. EOS Revista Española de Entomologia 38:486-547. (distribution). - As Batozonus marcidus: - Bradley, 1944Bradley, J.C. 1944. The generic position of certain Mexican Pompilidae (Hymenoptera), with description of a new genus. Notulae Naturae, The Academy of Natural Sciences of Philadelphia 145:1-12.:10 (comb. nov.). - As Poecilopompilus algidus marcidus: - 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), 243 (comb. nov.), 245 (biology); Evans, 1966Evans, H.E. 1966. A revision of the Mexican and central American spider wasps of the subfamily Pompilinae (Hymenoptera: Pompilidae). Memoirs of the American Entomological Society :1-442. (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); Horta Vega et al., 2009Horta Vega, J.V., M.E.García Gutiérrez, M.I. Benavides Martínez & A. Correa Sandoval 2009. Pompilidae (Hymenoptera) de algunos municipios del centro y sur de Tamaulipas, México. Acta Zool. Mex. (n.s.) 25 (1):71-82. (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); 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). - As Poecilopompilus allgidus marcidus: - As Poecilopompilus allgidus marcidus:
Pompilus willistoni Patton, 1879:352, ♀. 2 ♀♀, Northwestern Kansas (leg. S.W. Williston); 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.:243, Type ♀, location of type unknown, possibly no longer extant. - 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.:271 (listed); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:336 (listed); Banks, 1944Banks, N. 1944. Psammocharidae (spider-wasps): Notes and descriptions. Bulletin of the Museum of Comparative Zoology 94 (4):165-187.:168 ( listed as synonym of Batazonus interruptus (Say, 1837)); 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.:243 ( listed as synonym of Poecilopompilus algidus marcidus (Smith, 1862)). - As Poecilopompilus algidus willistoni: - Evans, 1966Evans, H.E. 1966. A revision of the Mexican and central American spider wasps of the subfamily Pompilinae (Hymenoptera: Pompilidae). Memoirs of the American Entomological Society :1-442. (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); 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 Pompilus willistonii: - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 336 (listed).
Pompilus pygidialis Kohl, 1886:314 (key), 334, ♀. Evans, 1966Evans, H.E. 1966. A revision of the Mexican and central American spider wasps of the subfamily Pompilinae (Hymenoptera: Pompilidae). Memoirs of the American Entomological Society :1-442.:207, Lectotype ♀ (? Vienna Mus.). Synonymized with Poecilopompilus algidus marcidus (Smith, 1862) by Evans, 1966Evans, H.E. 1966. A revision of the Mexican and central American spider wasps of the subfamily Pompilinae (Hymenoptera: Pompilidae). Memoirs of the American Entomological Society :1-442.:207. - Kohl, 1886Kohl, F.F. 1886. Neue Pompiliden in den Sammlungen des k.k. naturhistorischen Hofmuseums. Verh. zool.-bot. Ges. Wien 36:307-346. (distribution), 314 (key female); Cameron, 1888-1900Cameron, P. 1888-1900. Biologia Centrali-Americana - Insecta. Hymenoptera. (Fossores) Vol. II. R. H. Porter and Dulau & Co., London. 413pp, 14 pl.:210 (listed); Cameron, 1893Cameron, P. 1893. Biologia Centrali-Americana. Insecta. Hymenoptera. (Fossores) Vol. II. :177-257. (distribution), 210 (listed); Fox, 1897Fox, W.J. 1897. Contributions to a knowledge of the Hymenoptera of Brazil, No. 2. - Pompilidae. Proceedings of the Academy of Natural Sciences of Philadelphia 49:229-283. (distribution), 246 (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), 314 (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); 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.:1550 ( listed as synonym of Poecilopompilus algidus marcidus (Smith, 1862)).