Polyrhachis armata valid Philippines (Mindanao). Indomalaya.
Le Guillou, E. J. F. 1842 ("1841"). Catalogue raisonné des insectes hyménoptères recueillis dans le voyage de circumnavigation des corvettes l'Astrolabe et la Zélée. Annales de la Société Entomologique de France 10:311-324.   126836

Polyrhachis armata defensa valid Singapore, Indonesia (Java). Indomalaya.
Smith, F. 1857a. Catalogue of the hymenopterous insects collected at Sarawak, Borneo; Mount Ophir, Malacca; and at Singapore, by A. R. Wallace. [part]. Journal and Proceedings of the Linnean Society of London. Zoology 2:42-88.   128683

Polyrhachis armata minor synonym of Polyrhachis armata defensa India (Assam). Indomalaya.
Forel, A. 1886d. Indian ants of the Indian Museum, Calcutta, No. 2. Journal of the Asiatic Society of Bengal. Part II. Natural Science 55:239-249.   125013