Anochetus graeffei Mayr, 1870

Material examined. Kent Ridge Park, 7 Dec 2017, W. Wang leg.,WW-SG17-027, ZRC _ ENT00000979 ; workers and dealate queen, same locality as previous, 7 Dec 2017, Sk. Yamane leg., SG17-SKY-21 (SKYC); Nee Soon forest, 27 Jan 2015, W. Wang leg., WW-SG15- Anoc 1, ZRC _ ENT00000978 ; male, Pulau Semakau Old Fragment, SMO3, 1°12’23.9”N, 103°45’37.6”E, 5-12 Jul 2012, J. Puniamoorthy et al. leg., mangroves, malaise trap, Reg. 29342, ZRC _ BDP0014528 ; queens and males, Pulau Ubin, PU 1, 1°24’36.3”N, 103°59’25.5”E, Jul-Nov 2012, J. Puniamoorthy et al. leg., mangroves, malaise trap, ZRC _ BDP (multiple); male, Sungei Buloh Wetland Reserve, SB1, 1°26›46.3»N, 103°43›49.9»E, 21-28 Nov 2012, J. Puniamoorthy et al. leg., mangroves, malaise trap, Reg. 29595, ZRC _ BDP0017502 ; Upper Thomson Road, 24 Oct 2016, G.W. Yong leg., ZRC _ ENT00048414 .

Material not physically examined. ANIC 32- 015989, Shattuck1345236804 (ANIC).

Literature. Viehmeyer (1916), Overbeck (1924) [both as Anochetus punctiventris]. Shattuck & Slipinska (2012).

Localities. Kent Ridge Park; Labrador Nature Reserve; Nee Soon forest; Pulau Semakau; Pulau Ubin; Sungei Buloh Wetland Reserve; Upper Thomson Road .

Habitat/Ecology. Workers of this species were found in a garden, semi-urban parklands, young secondary forest and also Imperata cylindrica- dominated grassy scrub. Nests have been collected from dead twigs in leaf litter. Alates were collected from mangroves using malaise traps.

Remarks. This species is known to exhibit broad morphological variation between different populations, and may actually comprise a complex of multiple sibling species. In this checklist, we tentatively treat all morphological variants of this potential species complex in the ZRC as conspecific, bearing in mind the possibility that these might be separated into different species should more convincing empirical evidence be made available in future.