Ameragenia pretiosa Banks, 1946:428, ♀. Type ♀, Valle Chanchamayo, Peru, 1600 m., 1 April (M. C. Z., no. 26611, leg. Weyrauch); 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.:141, Holotype ♀, examined (MCZ, 26611). - Banks, 1946Banks, N. 1946. Studies of South American Psammocharidae. Part 1. Bulletin of the Museum of Comparative Zoology at Harvard College 96:311-525.:426 (key female). - As Ageniella pretiosa: - Rasmussen & Asenjo, 2009Rasmussen, C. & A. Asenjo 2009. A checklist to the wasps of Peru (Hymenoptera, Aculeata). ZooKeys 15:1-78. (distribution); Castro-Huertas et al., 2014Castro-Huertas, V., J.P. Pitts, J. Rodriguez, C. Waichert & F. Fernández 2014. New records of spider wasps (Hymenoptera, Pompilidae) from Colombia. ZooKeys 443:35-44. (distribution); 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); 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).