Tetramorium tonganum Mayr, 1870

Material examined. Prince George’s Park Residences (NUS), 1.29239, 103.77869, Apr-May 2015, M.S. Foo & W. Wang leg., malaise trap, ZRC _ BDP0045634, -46101, -46770; Pulau Ubin, 7 Jan 2014, Sk. Yamane leg., ZRC _ HYM_0000455-456 .

Material not physically examined. Unknown.

Literature. Wang et al. (2018a).

Localities. Prince George’s Park Residences (NUS); Pulau Ubin.

Habitat/Ecology. This species is associated with young secondary habitat in Singapore, mostly disturbed secondary forest fragments within semi-urban settings, or close to man-made infrastructure.

Remarks. It has been surmised that Java and Sumba (both part of Indonesia) represent the west-most limits of the species native range, and that populations in Malaysia and Singapore are possibly introduced (Bolton 1977).