• [Misspelled as rostratum by Emery, 1890c: 41, and others.]
• Brown, 1958g: 322 (w.)
• Combination in Ectatomma (Rhytidoponera): Mayr, 1887: 539.
• Combination in Ectatomma (Gnamptogenys): Emery, 1890c: 41.
• Combination in Ectatomma (Parectatomma): Emery, 1911e: 44.
• Combination in Gnamptogenys: Brown, 1958g: 229.
• Combination in Poneracantha: Camacho et al., 2022: 11.
• Status as species: Emery, 1890c: 41; Dalla Torre, 1893: 25; Emery, 1894l: 47; Forel, 1895b: 113; Emery, 1896g: 46 (in key); Forel, 1899b: 9; Emery, 1911e: 44; Borgmeier, 1923: 59; Wheeler, 1925a: 5; Brown, 1958g: 229, 321 (redescription); Kempf, 1972b: 114; Kempf & Lenko, 1976: 52; Bolton, 1995b: 210; Lattke, 1995: 180; Wild, 2007b: 27; Lattke et al., 2007: 263 (in key); Bezděčková et al., 2015: 111; Feitosa, 2015c: 98; Camacho et al., 2020: 461 (in key); Camacho et al., 2022: 11.
• Senior synonym of Poneracantha trigona: Lattke, 1995: 180; Camacho et al., 2022: 11.

Junior synonyms

• Poneracantha trigona (Emery, 1906)
  Obsolete combination(s): Gnamptogenys trigona, Ectatomma trigonum

Obsolete combinations

• Ectatomma rastratum
• Gnamptogenys rastrata

Citations

• Bezděčková, K.; Bezděčka, P.; Machar, I. 2015. A checklist of the ants of Peru. Zootaxa 4020:101-133. PDF
• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Borgmeier, T. 1923. Catalogo systematico e synonymico das formigas do Brasil. 1 parte. Subfam. Dorylinae, Cerapachyinae, Ponerinae, Dolichoderinae. Archivos do Museu Nacional (Rio de Janeiro) 24:33-103.
• 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
• Camacho, G. P.; Franco, W.; Feitosa, R. M. 2020. Additions to the taxonomy of Gnamptogenys Roger (Hymenoptera: Formicidae: Ectatomminae) with an updated key to the New World species. Zootaxa 4747 (3):450-476. https://doi.org/10.11646/zootaxa.4747.3.2 PDF
• Dalla Torre, K. W. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. PDF
• Emery, C. 1890c. Studii sulle formiche della fauna neotropica. Bullettino della Società Entomologica Italiana 22:38-80. PDF
• Emery, C. 1894l. Estudios sobre las hormigas de Costa Rica. Anales del Museo Nacional de Costa Rica 1888-1889:45-64. PDF
• Emery, C. 1896g. Studi sulle formiche della fauna neotropica. XVII-XXV. Bullettino della Società Entomologica Italiana 28:33-107. PDF
• Emery, C. 1911e. Hymenoptera. Fam. Formicidae. Subfam. Ponerinae. Genera Insectorum 118:1-125. PDF
• Feitosa, R. M. 2015c. Lista das formigas poneromorfas do Brasil. Pp. 95-102 in: Delabie, J. H. C.; Feitosa, R. M.; Serrão, J. E.; Mariano, C. S. F.; Majer, J. D. (eds.) 2015. As formigas poneromorfas do Brasil. Ilhéus-Bahia: Editora da UESC, 477 pp. PDF
• Forel, A. 1895b. A fauna das formigas do Brazil. Boletim do Museu Paraense de Historia Natural e Ethnographia 1:89-139. PDF
• Forel, A. 1899b. Formicidae. [part]. Biologia Centrali-Americana Hym. 3:1-24. PDF
• Kempf, W. W. 1972b. Catálogo abreviado das formigas da região Neotropical. Studia Entomologica 15:3-344. PDF
• Kempf, W. W.; Lenko, K. 1976. Levantamento da formicifauna no litoral norte e ilhas adjacentes do Estado de São Paulo, Brasil. I. Subfamilias Dorylinae, Ponerinae e Pseudomyrmecinae (Hym., Formicidae). Studia Entomologica 19:45-66. PDF
• Lattke, J. E. 1995. Revision of the ant genus Gnamptogenys in the New World (Hymenoptera: Formicidae). Journal of Hymenoptera Research 4:137-193. PDF
• Lattke, J. E.; Fernández, F.; Palacio, E. E. 2007. Identification of the species of Gnamptogenys Roger in the Americas. Pp. 254-270 in: Snelling, R. R.; Fisher, B. L.; Ward, P. S. (eds.) 2007. Advances in ant systematics (Hymenoptera: Formicidae): homage to E.O. Wilson – 50 years of contributions. Memoirs of the American Entomological Institute 80:690 pp. PDF
• Mayr, G. 1866b. Diagnosen neuer und wenig gekannter Formiciden. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 16:885-908. PDF
• Mayr, G. 1887. Südamerikanische Formiciden. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 37:511-632. PDF
• Wheeler, W. M. 1925a. Neotropical ants in the collections of the Royal Museum of Stockholm. Arkiv för Zoologi 17A(8):1-55. PDF
• Wild, A. L. 2007b. A catalogue of the ants of Paraguay (Hymenoptera: Formicidae). Zootaxa 1622:1-55. PDF