Polyrhachis (Myrma) inermis Smith, 1858

Material examined. MacRitchie Reservoir, 6 Jan 2014, Sk. Yamane leg., ZRC _HYM_0000481 .

Material not physically examined. FMNHINS0002842039, tc1357710822 (FMNH).

Literature. None. New record.

Localities. Kent Ridge Park; MacRitchie Reservoir.

Habitat/Ecology. This species appears to be associated with either young or mature secondary forests in Singapore.