• Lectotype designation: Guerrero, 2021: 433.
• Combination in Forelius: Guerrero, 2021: 433.
• Status as species: Emery, 1913a: 41; Borgmeier, 1923: 100; Kempf, 1972b: 247; Shattuck, 1994: 145; Bolton, 1995b: 400; Guerrero, 2021: 433 (redescription).
• Senior synonym of Forelius pusillus: Guerrero, 2021: 433.
• Senior synonym of Forelius heyeri risii: Guerrero, 2021: 433.
• Senior synonym of Forelius tucumanus: Guerrero, 2021: 433.

Junior synonyms

• Forelius heyeri risii (Forel, 1912)
  Obsolete combination(s): Tapinoma heyeri risii
• Forelius pusillus Santschi, 1922
  Obsolete combination(s): Forelius breviscapus pusillus
• Forelius tucumanus (Kusnezov, 1953)
  Obsolete combination(s): Neoforelius tucumanus

Obsolete combinations

• Tapinoma heyeri

Citations

• 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.
• Emery, C. 1913a ("1912"). Hymenoptera. Fam. Formicidae. Subfam. Dolichoderinae. Genera Insectorum 137:1-50. PDF
• Forel, A. 1902f. [Untitled. Tapinoma Heyeri Forel n. sp.]. P. 296 in: Wasmann, E. 1902b. Neues über die zusammengesetzten Nester und gemischten Kolonien der Ameisen [part]. Allgemeine Zeitschrift für Entomologie 7:293-298. PDF
• Guerrero, R. J. 2021. Transfer of two South American ant species from Tapinoma Foerster 1850 to Forelius Emery 1888 (Hymenoptera: Formicidae: Dolichoderinae). Zootaxa 4920 (3):428–438. 10.11646/zootaxa.4920.3.8 PDF
• Kempf, W. W. 1972b. Catálogo abreviado das formigas da região Neotropical. Studia Entomologica 15:3-344. PDF
• Shattuck, S. O. 1994. Taxonomic catalog of the ant subfamilies Aneuretinae and Dolichoderinae (Hymenoptera: Formicidae). University of California Publications in Entomology 112:i-xix, 1-241. PDF