• [Misspelled as 4-spinosa by Donisthorpe, 1943e: 447.]
• Donisthorpe, 1941b: 38 (q.m.)
• Combination in Pheidole: Mayr, 1878: 677.
• Combination in Pristomyrmex: Mayr, 1886c: 363.
• Combination in Pheidole (Pheidolacanthinus): Emery, 1921c: 82.
• Status as species: Smith, 1871a: 326; Dalla Torre, 1893: 95; Emery, 1921c: 82; Donisthorpe, 1932c: 473; Donisthorpe, 1938a: 144; Donisthorpe, 1941b: 38; Donisthorpe, 1943e: 447; Chapman & Capco, 1951: 138; Bolton, 1995b: 328.
• Senior synonym of Pheidole armatus: Donisthorpe, 1938a: 144; Bolton, 1995b: 328.
• Senior synonym of Pheidole smithi (unnecessary replacement name): Dalla Torre, 1893: 95; Emery, 1921c: 82; Bolton, 1995b: 328.

Junior synonyms

• Pheidole armatus (Smith, 1865)
  Obsolete combination(s): Pheidolacanthinus armatus
• Pheidole smithi Emery, 1887

Obsolete combinations

• Myrmica quadrispinosa

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Chapman, J. W.; Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monographs of the Institute of Science and Technology. Manila 1:1-327. PDF
• Dalla Torre, K. W. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. PDF
• Donisthorpe, H. 1932c. On the identity of Smith's types of Formicidae (Hymenoptera) collected by Alfred Russell Wallace in the Malay Archipelago, with descriptions of two new species. Annals and Magazine of Natural History (10)10:441-476. PDF
• Donisthorpe, H. 1938a. Five new species of ant, chiefly from New Guinea. Annals and Magazine of Natural History (11)1:140-148. PDF
• Donisthorpe, H. 1941b. New ants from Waigeu Island, New Guinea, and the Solomons. Entomologist 74:36-42. PDF
• Donisthorpe, H. 1943e. The ants (Hym., Formicidae) of Waigeu Island, North Dutch New Guinea. Annals and Magazine of Natural History (11)10:433-475. PDF
• Emery, C. 1921c. Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [part]. Genera Insectorum 174A:1-94 + 7 plates. PDF
• Mayr, G. 1878 ("1877"). Formiciden gesammelt in Brasilien von Professor Trail. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 27:867-878. PDF
• Mayr, G. 1886c. Notizen über die Formiciden-Sammlung des British Museum in London. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 36:353-368. PDF
• Smith, F. 1865a. Descriptions of new species of hymenopterous insects from the islands of Sumatra, Sula, Gilolo, Salwatty, and New Guinea, collected by Mr. A. R. Wallace. Journal and Proceedings of the Linnean Society of London. Zoology 8:61-94. PDF
• Smith, F. 1871a. A catalogue of the Aculeate Hymenoptera and Ichneumonidae of India and the Eastern Archipelago. With introductory remarks by A. R. Wallace. [part]. Journal of the Linnean Society of London. Zoology 11:285-348. PDF