Prenolepis subopaca Emery, 1900

Material examined. Bukit Timah Nature Reserve, 28 Mar 1967, D.H. Murphy leg., ZRC _ HYM_0000760; Mandai Track 15, 4 Jan 2016, G.W. Yong leg., ZRC _HYM_0001029- 1031; Mandai Track, 4 Jan 2017, G.W. Yong leg., ZRC _HYM_0001168; Mandai Lake Road, 4 Jan 2016, G.W. Yong leg., ZRC _ HYM_0001032; same locality and collector as previous, 5 Nov 2016, G.W. Yong leg., ZRC _ ENT00047967; Upper Peirce Reservoir, 10 Jan 2014, Sk. Yamane leg. (SKYC) ; Upper Thomson Nature Park, 1.38241, 103.81944, 9-11 Oct 2016, G.W. Yong et al. leg., UT4TPc1672, ZRC _ ENT00047920 .

Material not physically examined. Bukit Timah, 1°21’N, 103°47’E, 50 m, 7 Apr 1989, P.S. Ward leg.; Sembawang, 18 Jun 1967, D.H. Murphy leg. [in Williams & LaPolla 2016].

Literature. Williams & LaPolla (2016); Peeters & Yong (2017).

Localities. Bukit Timah Nature Reserve; Mandai Lake Road; Mandai Track; Sembawang; Upper Peirce Reservoir; Upper Thomson Nature Park.

Habitat/Ecology. This species is associated mostly with mature or old secondary forests of varying levels of disturbance, including abandoned plantation forest. Nests can be found in leaf litter; individuals were usually found foraging arboreally.

Remarks. Prenolepis subopaca is morphologically similar to its congener P. jerdoni . The former can be differentiated from the latter by its finely reticulate and dull (almost matte) cuticular sculpture, and thick pubescence present in patches on pronotal and propodeal dorsums, and also the gaster.