Pseudolasius trimorphus Karavaiev, 1929

Material examined. Nee Soon forest, 26 Apr 2018, W. Wang leg., WW-SG18- Pseul 1, ZRC _ ENT00000949 .

Material not physically examined. Unknown.

Literature. None. New record.

Localities. Nee Soon forest

Habitat/Ecology. This species was found in Adinandra belukar -dominated secondary forest; a nest was found under the bark of an underground tree root, with soil substrate.