Aulacus maculatus Schletterer, 1889:497, Smith, 2005Smith, D.R. 2005. Aulacidae (Hymenoptera) of northern South America, emphasizing Colombia. Transactions of the American Entomological Society 131 (1+2):217-253.:240, Holotype ♀, examined (UCOP); Smith, 2008Smith, D.R. 2008. Aulacidae of the southwestern United States, Mexico, and Central America (Hymenoptera). Beitr. Ent. 58:267-365.:300, Holotype ♀ (ZMUC), Lectotype ♀, examined (Zool. Museum DK Copenhagen), designated by Smith, 2018Smith, D.R. 2018. Neotropical Pristaulacus Kieffer (Hymenoptera: Aulacidae), species with acute anterolateral mesonotal projections. Transactions of the American Entomological Society 144:309-345.:326. - Dalla Torre, 1901-1902Dalla Torre, C.G. 1901-1902. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. — Volumen III: Trigonalidae, Megalyridae, Stephanidae, Ichneumonidae, Agriotypidae, Evaniidae, Pelecinidae. Pars II. Breitkopf & Härtel, Leipzig. VIII + 1141. (distribution). - As Pristaulacus maculatus: - Smith, 2005Smith, D.R. 2005. Aulacidae (Hymenoptera) of northern South America, emphasizing Colombia. Transactions of the American Entomological Society 131 (1+2):217-253. (distribution); Smith, 2008Smith, D.R. 2008. Aulacidae of the southwestern United States, Mexico, and Central America (Hymenoptera). Beitr. Ent. 58:267-365. (distribution); Smith, 2018Smith, D.R. 2018. Neotropical Pristaulacus Kieffer (Hymenoptera: Aulacidae), species with acute anterolateral mesonotal projections. Transactions of the American Entomological Society 144:309-345. (distribution); Ramos & Arias, 2018Ramos, Y.J.A. & D.Q. Arias 2018. Aulacidae, Gasteruptiidae y Stephanidae (Insecta, Hymenoptera) de Panamá. Tecnociencia 20 (1):27-34. (distribution); Añino & Quintero, 2018Añino Ramos, Y.J. & D. Quintero Arias 2018. Aulacidae, Gasteruptiidae y Stephanidae (Insecta: Hymenoptera) de Panamá. Tecnociencia 20 (1):27-34. (distribution); Añino Ramos, 2018Añino Ramos, Y.J. 2018. . Dissertation , , 1-48. (distribution).