Pompilus echinatus Fox, 1897:242, ♀. Holotype ♀, Rio de Janeiro, November; 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.:272, Type ♀ (CM). - 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), 242 (listed), 259 (key [key to the new described species]). - As Anoplius echinatus: - 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); 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); 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 Pompilus echinata: - Banks, 1947Banks, N. 1947. Studies of South American Psammocharidae. Part 2. Museum of Comparative Zoology at Harvard College, Bulletin 99:371-486.:405 (listed). - As Psammochares echinata: - Banks, 1947Banks, N. 1947. Studies of South American Psammocharidae. Part 2. Museum of Comparative Zoology at Harvard College, Bulletin 99:371-486. (distribution), 405 (listed). - As Psammochares echinatus: - Banks, 1944Banks, N. 1944. The Psammocharidae (Hymenoptera) taken at Kartabo and other localities in British Guiana. Zoologica 29:97-112. (distribution), 111 (listed).
Notiochares diffinis Banks, 1947:410, ♀. Holotype ♀, Iquitos San Rogue, Peru, March (Cornell Univ., leg. Klug); Paratype ♀, Iquitos San Rogue, Peru, March (M. C. Z., no. 26699, leg. Klug); 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.:272, Type ♀ (CU, no. 2501). Synonymized with Anoplius echinatus (Fox, 1897) 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.:272. - Junco y Reyes, 1959Junco y Reyes, J.J. 1959. Himenópteros de Espana. Fam. Pompilidae (=Psammocharidae) Gen. Anopilus Duf. EOS Revista Española de Entomologia 35:41-95. (distribution), 55 (listed). - As Anoplius diffinis: - Rasmussen & Asenjo, 2009Rasmussen, C. & A. Asenjo 2009. A checklist to the wasps of Peru (Hymenoptera, Aculeata). ZooKeys 15:1-78. (distribution).