Dryinus ruficeps Cameron, 1888:445,Panama, Bugaba (leg. Champion); Olmi & Virla, 2014Olmi, M. & Virla, E.G. 2014. Dryinidae of the Neotropical region (Hymenoptera: Chrysidoidea). Zootaxa 3792 (1):1-534.:273, Holotype ♀ (BMNH). - Cameron, 1883-1888Cameron, P. 1883-1888. Biologia Centrali-Americana - Insecta. Hymenoptera. (Families Tenthredinidae-Chrysididae). Taylor and Francis, Red Lion Court, Fleet Street. 487 pp., 20 pl.:445 (listed); Dalla Torre, 1898Dalla Torre, C.G. 1898. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, V. Chalcididae et Proctotrupidae. Sumptibus Guilelmi Engelmann, VII + 598. (distribution); Virla & Olmi, 1998Virla, E. & M. Olmi 1998. The Dryinidae of Argentina (Hymenoptera - Chrysidoidea). Acta Ent. Chilena 22:19-35. (distribution); Olmi et al., 2000Olmi, M., Virla, E.G. & Fernández, F. 2000. Las avispas Dryinidae de la región Neotropical (Hymenoptera: Chrysidoidea). Biota Colombiana 1 (2):141-163. (distribution); Rasmussen & Asenjo, 2009Rasmussen, C. & A. Asenjo 2009. A checklist to the wasps of Peru (Hymenoptera, Aculeata). ZooKeys 15:1-78. (distribution); Cambra et al., 2012Cambra, R.A., M. Olmi, M.A. Zambrano & Y. del C. Campos 2012. Diversidad de Dryinidae (Hymenoptera) para Panamá, en especial las del Parque Nacional Darién. Scientia (Panamá) 22 (1):33-43. (distribution); Olmi & Virla, 2014Olmi, M. & Virla, E.G. 2014. Dryinidae of the Neotropical region (Hymenoptera: Chrysidoidea). Zootaxa 3792 (1):1-534. (distribution); Olmi & Guglielmino, 2016Olmi, M. & A. Guglielmino 2016. The checklist of Dryinidae (Hymenoptera: Chrysidoidea) of French Guiana, with descriptions of two new species of Dryinus Latreille. Israel Journal of Entomology 46:11-29. (distribution); Martins, 2023Martins, A.L. 2023. Contribution to the knowledge of pincer wasps (Hymenoptera: Dryinidae): new records from South America. Revista Chilena de Entomología 49 (4):801-811. (distribution).
Lestodryinus dichrous Fenton, 1927:1, Olmi & Virla, 2014Olmi, M. & Virla, E.G. 2014. Dryinidae of the Neotropical region (Hymenoptera: Chrysidoidea). Zootaxa 3792 (1):1-534.:273, Holotype ♀ (USNM). - Virla & Olmi, 1998Virla, E. & M. Olmi 1998. The Dryinidae of Argentina (Hymenoptera - Chrysidoidea). Acta Ent. Chilena 22:19-35.:25 ( listed as synonym of Dryinus ruficeps Cameron, 1888); Olmi & Virla, 2014Olmi, M. & Virla, E.G. 2014. Dryinidae of the Neotropical region (Hymenoptera: Chrysidoidea). Zootaxa 3792 (1):1-534.:272 ( listed as synonym of Dryinus ruficeps Cameron, 1888).