Formica tropica Smith, 1861b: 37 (w.) INDONESIA (Halmahera). Australasia.

Primary type information: Primary type material: holotype worker. Primary type locality: Indonesia: Gilolo (= Halmahera I.), “Gil.” (A.R. Wallace). Primary type depository: OXUM. Primary type specimen: CASENT0901888. Type notes: Donisthorpe, 1932c: 465, cites 1 worker in OXUM; (confirmed by Bolton (unpublished notes) 1978).