Formica flavitarsus Smith, 1859a: 136 (w.) INDONESIA (Aru Is). Indomalaya.

Primary type information: Primary type material: 2 syntype workers. Primary type locality: Indonesia: Aru Is, “Aru 14”, “Aru 45” (A.R. Wallace). Primary type depository: OXUM. Type notes: 1) Donisthorpe, 1932c: 452, cites 1 worker in OXUM. 2) Bolton (unpublished notes) 1978 cites 2 worker syntypes in OXUM, “both specimens appear to come from the same series, and appear to have originally been mounted on a single card that was later cut in half”. 3) Lucky & Ward, 2010: 33, cite 2 worker syntypes in OXUM, but incorrectly attribute collector as F. Smith.