Agenia amabilis Taschenberg, 1869:45, ♀. ♀, Nov. Frib. (Brasilia). - 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.:235 (listed). - As Cosmagenia amabilis: - Haupt, 1959Haupt, H. 1959. Elemente einer systematischen Aufteilung der Macromerinae m. (Hymenoptera-Sphecoidae). Fam. Pompilidae, Subfam. Macromerinae). Nova Acta Leopoldina 21:1-74. (distribution), 63 (comb. nov., key female). - As Eragenia amabilis: - Fernández et al., 2017Fernández, F., V. Castro, J. Rodríguez, C. Waichert & J.P. Pitts 2017. Avispas cazadoras de arañas de Colombia (Hymenoptera: Pompilidae). Proceditor Ltda., Bogotá, D. C., Colombia. (distribution); Kurczewski et al., 2020Kurczewski, F.E., R.C. West, C. Waichert, K.C. Kissane, D. Ubick & J.P. Pitts 2020. New and unusual host records for North American and South American spider wasps (Hymenoptera: Pompilidae). Zootaxa 4891 (1):1-112. (distribution), 41 (prey); 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); Kurczewski et al., 2022Kurczewski, F.E., R.C. West, C. Waichert & J.P. Pitts 2022. Additional new and unusual host records for Western Hemisphere spider wasps (Hymenoptera: Pompilidae). Insecta Mundi 0928:1-32. (distribution, hosts). - As Priocnemella amabilis: - As Pseudagenia amabilis: - 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); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749.:197 (listed).
Ageniella amoena Banks, 1946:423, ♂♀. Type, Nova Teutonia, Santa Catharina, Brazil (M. C. Z., no. 26604, leg. Plaumann); ♂♂, ♀♀, Nova Teutonia, Santa Catharina, Brazil, 23, 25 January, 6, 15 May (leg. Plaumann). Synonymized with Agenia amabilis Taschenberg, 1869 by Evans, 1973Evans, H.E. 1973. Studies on Neotropical Pompilidae (Hymenoptera) IX. The genera of Auplopodini. Psyche 80:212-226.:214. - Banks, 1946Banks, N. 1946. Studies of South American Psammocharidae. Part 1. Bulletin of the Museum of Comparative Zoology at Harvard College 96:311-525.:422 (key female). - As Priocnemella amoena: