Cardiocondyla wroughtonii (Forel, 1890)
Material examined. Kranji Road, 1.42638, 103.75413, 8 Nov 2016, G.W. Yong leg., KR1TH1392, ZRC _HYM_0001773; same locality and collector as previous, 7 Sep 2016, ZRC _ ENT00048403; Mandai Road, 1.4119, 103.80513, 29 Nov 2016, G.W. Yong leg., M3D4GH850, ZRC _HYM_0001772; Upper Peirce Reservoir, 10 Jan 2014, Sk. Yamane leg. (SKYC) .
Material not physically examined. CASENT0908352, ANTC29539 (MHNG) [syntype of C.wroughtonii quadraticeps]; FOCOL1612 (ZMHB) [type queen of C.wroughtonii quadraticeps].
Literature. Forel (1912), Viehmeyer (1916), Overbeck (1924) [all as C. wroughtonii quadraticeps]. Seifert (2003).
Localities. Bukit Timah Road; Kranji Road; Mandai Road; Upper Peirce Reservoir.
Habitat/Ecology. This species was found in both mature native-dominated, and young waste woodland secondary forests in Singapore, also in gardens. Some specimens were collected on tree trunks.
Remarks. Cardiocondyla wroughtonii is a recognized global tramp species that can thrive in a range of habitats including degraded vegetation in urban or semi-urban settings. Thus, it is highly possible that actual species distribution in Singapore might be broader, and underrepresented by material available for examination at the time of writing.