Rhopalosoma guianense Schulz, 1906:221, ♀. Holotype ♀, Oyapok in Brasilianisch-Guiana, VI. 1904 (leg. Adolf Ducke); Townes, 1977Townes, H.K. 1977. A revision of the Rhopalosomatidae (Hymenoptera). Contributions of the American Entomological Institute 15 (1):1-34.:25, Type ♀ (Strasbourg). - Bodkin, 1918Bodkin, G.E. 1918. Notes on some British Guiana Hymenoptera (exclusive of the Formicidae). The Transactions of the Entomological Society of London 1917:297-321, pls. XXI-XXIII. (distribution); Townes, 1977Townes, H.K. 1977. A revision of the Rhopalosomatidae (Hymenoptera). Contributions of the American Entomological Institute 15 (1):1-34. (distribution, figures, key), 25 (description); Guidotti, 1999Guidotti, A.E. 1999. Systematics of little known parasitic wasps of the family Rhopalosomatidae (Hymenoptera: Vespoidea). Dissertation , . Canada. (distribution); Braet et al., 2000Braet, Y., J.A. Cerda & J. Fretey 2000. Note sur quelques insectes récoltés au piège Malaise en Guyane française. Notes faunique de Gembloux 38:3-20. (distribution); Schulmeister, 2002Schulmeister, S. 2002. Morphology and evolution of the tarsal plantulae in Hymenoptera (Insecta), focussing on the basal lineages. Zoologica Scripta 32:153-172. (phylogeny); Rasmussen & Asenjo, 2009Rasmussen, C. & A. Asenjo 2009. A checklist to the wasps of Peru (Hymenoptera, Aculeata). ZooKeys 15:1-78. (distribution); Lohrmann et al., 2019Lohrmann, V., M. Ohl, P. Michalik, J.P. Pitts, L. Jeanneau & V. Perrichot 2019. Notes on rhopalosomatid wasps of Dominican and Mexican amber (Hymenoptera: Rhopalosomatidae) with a description of the first fossil species of Rhopalosoma Cresson, 1865. Fossil Record 22:31-44. (in list of studied reference material).
Rhopalosoma martinezi Ogloblin, 1951:14, ♀. Holotype ♀, Buena Vista, Departamento de Santa Cruz, Bolivia, febrero de 1950 (leg. Antonio Martínez); Townes, 1977Townes, H.K. 1977. A revision of the Rhopalosomatidae (Hymenoptera). Contributions of the American Entomological Institute 15 (1):1-34.:25, Type ♀ (La Plata). Synonymized with Rhopalosoma guianense Schulz, 1906 by Townes, 1977Townes, H.K. 1977. A revision of the Rhopalosomatidae (Hymenoptera). Contributions of the American Entomological Institute 15 (1):1-34.:25.