Salius nigerrimus Fox, 1897:271, ♀. Holotype ♀, Chapada, April; 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.:148, Holotype ♀, examined (CMNH). - 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.:278 (key [key to the new described species]). - As Ageniella nigerrima: - 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). - As Priophanes nigerrima: - Banks, 1946Banks, N. 1946. Studies of South American Psammocharidae. Part 1. Bulletin of the Museum of Comparative Zoology at Harvard College 96:311-525. (distribution), 439 (key female). - As Salius nigerrima: