Pompilus longulus Cresson, 1867:129, ♂. Holotype ♂, Dakota Territory (Am. Ent. Soc.); Waichert et al., 2018Waichert, C., W.D. Colombo, C.D. von Dohlen & J.P. Pitts 2018. Taxonomic contributions to Ageniella Banks, 1912 (Hymenoptera: Pompilidae) from Brazil. Zootaxa 4403 (1):133-153.:145, Holotype ♂, examined (ANSP). - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:204 (listed); 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.:96 (listed); Townes, 1957Townes, H. 1957. Nearctic wasps of the subfamilies Pepsinae and Ceropalinae. Bulletin of the United States National Museum 209:1-286.:175 (listed). - As Agenia longula: - 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.:272 (listed). - As Ageniella longula: - Townes, 1957Townes, H. 1957. Nearctic wasps of the subfamilies Pepsinae and Ceropalinae. Bulletin of the United States National Museum 209:1-286.:175 (listed); 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); Kurczewski, 1987Kurczewski, F.E. 1987. Nest and Prey of Ageniella (Leucophrus) fulgifrons (Hymenoptera: Pompilidae). The Great Lakes Entomologist 20 (2):75-80.:79 (prey); Evans, 1997Evans, H.E. 1997. Spider wasps of Colorado (Hymenoptera, Pompilidae): An annotated checklist. The Great Basin Naturalist 57 (3):189-197. (distribution); Waichert et al., 2018Waichert, C., W.D. Colombo, C.D. von Dohlen & J.P. Pitts 2018. Taxonomic contributions to Ageniella Banks, 1912 (Hymenoptera: Pompilidae) from Brazil. Zootaxa 4403 (1):133-153. (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 Nemagenia longulus: - Banks, 1944Banks, N. 1944. Psammocharidae (spider-wasps): Notes and descriptions. Bulletin of the Museum of Comparative Zoology 94 (4):165-187. (distribution), 179 (comb. nov.). - As Pseudagenia longula: - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:204 (listed).
Agenia longa Cresson, 1872:205, ♀. Holotype ♀, Texas (G.W. Belfrage); Waichert et al., 2018Waichert, C., W.D. Colombo, C.D. von Dohlen & J.P. Pitts 2018. Taxonomic contributions to Ageniella Banks, 1912 (Hymenoptera: Pompilidae) from Brazil. Zootaxa 4403 (1):133-153.:145, Holotype ♂ '♀'=♂ (ANSP). - 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.:272 (listed); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:204 (listed); Townes, 1957Townes, H. 1957. Nearctic wasps of the subfamilies Pepsinae and Ceropalinae. Bulletin of the United States National Museum 209:1-286.:175 ( listed as synonym of Ageniella longula (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.:1539 ( listed as synonym of Ageniella longula (Cresson, 1867)); Waichert et al., 2018Waichert, C., W.D. Colombo, C.D. von Dohlen & J.P. Pitts 2018. Taxonomic contributions to Ageniella Banks, 1912 (Hymenoptera: Pompilidae) from Brazil. Zootaxa 4403 (1):133-153.:145 ( listed as synonym of Ageniella longula (Cresson, 1867)). - As Pseudagenia longa: - Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution), 204 (listed).
Priocnemis directa Banks, 1912:107, sex not indicated.Lee Co., Texas, Aug., Sept. (leg. Birkman); Waichert et al., 2018Waichert, C., W.D. Colombo, C.D. von Dohlen & J.P. Pitts 2018. Taxonomic contributions to Ageniella Banks, 1912 (Hymenoptera: Pompilidae) from Brazil. Zootaxa 4403 (1):133-153.:145, Lectotype ♀ (MCZ). - Townes, 1957Townes, H. 1957. Nearctic wasps of the subfamilies Pepsinae and Ceropalinae. Bulletin of the United States National Museum 209:1-286.:175 ( listed as synonym of Ageniella longula (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.:1539 ( listed as synonym of Ageniella longula (Cresson, 1867)); Waichert et al., 2018Waichert, C., W.D. Colombo, C.D. von Dohlen & J.P. Pitts 2018. Taxonomic contributions to Ageniella Banks, 1912 (Hymenoptera: Pompilidae) from Brazil. Zootaxa 4403 (1):133-153.:145 ( listed as synonym of Ageniella longula (Cresson, 1867)).