Crematogaster brunnea ruginota Santschi, 1928

Material examined. None available.

Material not physically examined. Unknown.

Literature. Viehmeyer (1916), Overbeck (1924) [both as Crematogaster subnuda politula var. ruginota].

Localities. Bukit Timah Road

Habitat/Ecology. Individuals were found in the stump of a branch on a living tree, in a garden.

Remarks. At the time of writing, there are only literature records of this subspecies in Singapore.