• Opisthoscyphus in Ponerinae, Ectatommini: Wheeler, 1930h: 13; Donisthorpe, 1943g: 678.
• Opisthoscyphus as genus: Wheeler, 1930h: 13; Donisthorpe, 1943g: 678.
• Opisthoscyphus as junior synonym of Gnamptogenys: Brown, 1958g: 212; Kempf, 1972b: 111; Smith, 1979: 1337; Hölldobler & Wilson, 1990: 10; Bolton, 1995b: 40; Bolton, 2003: 175.
• Opisthoscyphus as junior synonym of Alfaria: Brown, 1957k: 115; Camacho et al., 2022: 10.

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Bolton, B. 2003. Synopsis and classification of Formicidae. Memoirs of the American Entomological Institute 71:1-370. PDF
• Brown, W. L., Jr. 1957k. [Untitled. Taxonomic changes in Alfaria, Gnamptogenys, Heteroponera, Opisthoscyphus, Paranomopone, Proceratium and Sysphingta attributed to Brown.]. Pp. 112-118 in: Borgmeier, T. 1957a. Myrmecologische Studien, I. Anais da Academia Brasileira de Ciencias 29:103-128. PDF
• Brown, W. L., Jr. 1958g. Contributions toward a reclassification of the Formicidae. II. Tribe Ectatommini (Hymenoptera). Bulletin of the Museum of Comparative Zoology 118:173-362. PDF
• Camacho, G. P.; Franco, W.; Branstetter, M. G.; Pie, M. R.; Longino, J. T.; Schultz, T. R.; Feitosa, R. M. 2022. UCE phylogenomics resolves major relationships among ectaheteromorph ants (Hymenoptera: Formicidae: Ectatomminae, Heteroponerinae): a new classification for the subfamilies and the description of a new genus. Insect Systematics and Diversity 6 (1): 5:1-20. 10.1093/isd/ixab026 PDF
• Donisthorpe, H. 1943g. A list of the type-species of the genera and subgenera of the Formicidae. [part]. Annals and Magazine of Natural History (11)10:617-688.
• Hölldobler, B.; Wilson, E. O. 1990. The ants. Cambridge, Mass.: Harvard University Press, xii + 732 pp.
• Kempf, W. W. 1972b. Catálogo abreviado das formigas da região Neotropical. Studia Entomologica 15:3-344. PDF
• Mann, W. M. 1922. Ants from Honduras and Guatemala. Proceedings of the United States National Museum 61:1-54. PDF
• Smith, D. R. 1979. Superfamily Formicoidea. Pp. 1323-1467 in: Krombein, K. V.; Hurd, P. D.; Smith, D. R.; Burks, B. D. (eds.) 1979. Catalog of Hymenoptera in America north of Mexico. Volume 2. Apocrita (Aculeata). Washington, D.C.: Smithsonian Institution Press, pp. i-xvi, 1199-2209.
• Wheeler, W. M. 1930h. A new Emeryella from Panama. Proceedings of the New England Zoological Club 12:9-13. PDF