Polyrhachis acantha Smith, 1860 junior synonym of current valid taxon Polyrhachis saevissima Smith, 1860
Polyrhachis acantha Smith, 1860b: 98, pl. 1, fig. 16 (w.) INDONESIA (Bacan). Australasia.
Primary type information: Primary type material: holotype worker. Primary type locality: Indonesia: Bachian (= Bacan I.), “Bac.” (A.R. Wallace). Primary type depository: OXUM. Type notes: Donisthorpe, 1932c: 460, cites 1 worker in OXUM (confirmed by Bolton (unpublished notes) 1978).
Citations

Extant: 0 valid subspecies (1 synonym, 1 homonym, 4 obsolete combinations)