Rhopalomastix tenebra Wang, Yong & Jaitrong, 2018

Material examined. Holotype – Upper Thomson Nature Park, 1.38653, 103.81938, 24 Oct 2016, G.W. Yong & S.X. Chui leg., durian tree, GY-SG16-RhoB, ZRC _ ENT00000877; paratype male, queens and workers, same collection data as holotype, ZRC _ HYM_0000288. Non-types – Bukit Timah Nature Reserve, 9 Mar 1983, D.H. Murphy leg., ZRC _HYM_0000686; Mandai forest, 1.40843, 103.78326, 13 Nov 2018, W. Wang leg., WW-SG18- Rho 4, ZRC _ ENT00007585; Namly Avenue, 28 Apr 1985, D.H. Murphy leg., DHM-85- Rho 1, ZRC _ ENT00000885; Upper Thomson Road, 11 Oct 2016, G.W. Yong leg., ZRC _HYM_0001015-1022.

Material not physically examined. Unknown.

Literature. Type – Wang et al. (2018c).

Localities. Bukit Timah Nature Reserve; Mandai forest; Namly Avenue; Upper Thomson Nature Park [type]; Upper Thomson Road .

Habitat/Ecology. This species was found mainly in old/mature and young secondary forests in Singapore, including abandoned plantation forest. Nests were found in bark of large dipterocarp trees such as durian.

Remarks. Type locality in Singapore.