Tetramorium obtusidens Viehmeyer, 1916

Material examined. Bukit Timah forest, collection date unknown, D.H. Murphy leg., A124-2, ZRC _HYM_0000749; University Hall (NUS), 1.29711, 103.77658, 1-8 Apr 2015, M.S. Foo & W. Wang leg., malaise trap, NUS0008, ZRC _ BDP0045351 ; same locality and collectors as previous, 10-17 Jun 2015, NUS0048, ZRC _ BDP0044430 .

Material not physically examined. Type queens – FOCOL2072 -2073 (ZMHB) .

Literature. Type – Viehmeyer (1916); Overbeck (1924). Bolton (1977); Wang et al. (2018a).

Localities. Bukit Timah forest; Jurong Road [type]; University Hall (NUS).

Habitat/Ecology. This species appears associated with primary and/or mature secondary forests in Singapore, including disturbed forest fragments in semi-urban settings. Queens have been found alongside other ant species such as Cataulacus praetextus and Technomoyrmex albipes in rotten branches.

Remarks. Type locality in Singapore. The species was first described based on syntype queens (see Viehmeyer 1916), while the worker was described much later (see Bolton 1977) based on specimens from a locality different from that of the queen types, and also specimens from other countries.