• Combination in Leptothorax (Goniothorax): Emery, 1896g: 59 (in key).
• Combination in Leptothorax (Nesomyrmex): Kempf, 1958c: 93 (figure caption); Kempf, 1959d: 414.
• Combination in Nesomyrmex: Bolton, 2003: 272.
• Status as species: Dalla Torre, 1893: 123; Forel, 1895b: 126; Emery, 1896g: 59 (in key); Forel, 1905e: 159; Wheeler, 1922e: 11; Emery, 1924f: 250; Borgmeier, 1927c: 108; Kempf, 1958c: 99; Kusnezov, 1958c: 267; Kempf, 1959d: 414 (redescription); Kempf, 1972b: 133; Bolton, 1995b: 236; Bolton, 2003: 272; Longino, 2006b: 136; Wild, 2007b: 34; Bezděčková et al., 2015: 118.
• Senior synonym of Nesomyrmex asper rufa: Kempf, 1959d: 414; Kempf, 1972b: 133; Bolton, 1995b: 236; Longino, 2006b: 136.
• Senior synonym of Nesomyrmex asper sulfurea: Kempf, 1959d: 414; Kempf, 1972b: 133; Bolton, 1995b: 236; Longino, 2006b: 136.
• Senior synonym of Nesomyrmex tristani: Longino, 2006b: 136.

Junior synonyms

• Nesomyrmex asper rufa (Emery, 1896)
  Obsolete combination(s): Leptothorax asper rufa
• Nesomyrmex asper sulfurea (Forel, 1912)
  Obsolete combination(s): Leptothorax asper sulfurea
• Nesomyrmex tristani (Emery, 1896)
  Obsolete combination(s): Leptothorax tristani

Obsolete combinations

• Leptothorax asper

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.
• Bolton, B. 2003. Synopsis and classification of Formicidae. Memoirs of the American Entomological Institute 71:1-370. PDF
• Borgmeier, T. 1927c. Catalogo systematico e synonymico das formigas do Brasil. 2 parte. Subf. Pseudomyrminae, Myrmicinae, Formicidae. Archivos do Museu Nacional (Rio de Janeiro) 29:69-164. 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. 1896g. Studi sulle formiche della fauna neotropica. XVII-XXV. Bullettino della Società Entomologica Italiana 28:33-107. PDF
• Emery, C. 1924f ("1922"). Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [concl.]. Genera Insectorum 174C:207-397. 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. 1905e. Miscellanea myrmécologiques II (1905). Annales de la Société Entomologique de Belgique 49:155-185. PDF
• Kempf, W. W. 1958c. Sôbre algumas formigas neotrópicas do gênero Leptothorax Mayr (Hymenoptera: Formicidae). Anais da Academia Brasileira de Ciencias 30:91-102. PDF
• Kempf, W. W. 1959d. A synopsis of the New World species belonging to the Nesomyrmex-group of the ant genus Leptothorax Mayr (Hymenoptera: Formicidae). Studia Entomologica (n.s.)2:391-432. PDF
• Kempf, W. W. 1972b. Catálogo abreviado das formigas da região Neotropical. Studia Entomologica 15:3-344. PDF
• Kusnezov, N. 1958c. La posición sistemática de las especies argentinas del genero Leptothorax Mayr, 1855. Acta Zoologica Lilloana 16:265-271. PDF
• Longino, J. T. 2006b. New species and nomenclatural changes for the Costa Rican ant fauna (Hymenoptera: Formicidae). Myrmecologische Nachrichten 8:131-143. PDF
• Mayr, G. 1887. Südamerikanische Formiciden. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 37:511-632. PDF
• Wheeler, W. M. 1922e. The ants of Trinidad. American Museum Novitates 45:1-16. PDF
• Wild, A. L. 2007b. A catalogue of the ants of Paraguay (Hymenoptera: Formicidae). Zootaxa 1622:1-55. PDF