Gauromyrmex acanthinus (Karavaiev, 1935) Material examined. Bukit Timah Nature Reserve, near BT05, 1.35386, 103.77988, 23 Aug 2017, W. Wang leg., WW-SG17-018, ZRC _ HYM_0001747; same locality and collector as previous, 1 Nov 2017, ZRC _EnT00047952. Material not physically examined. Unknown. Literature. None. New record. Localities. Bukit Timah Nature Reserve Habitat/Ecology. This species is associated with primary or old secondary forest in a single locality. In one instance, the ants were found nesting under the bark of a very large living tree. They were also observed in large dead logs or fallen rotting branches.

Published as part of Hamer, Matthew T., Lee, Jonathan Hon Chung, Tse, Cheung Yau Leo, Silva, Thiago S. R. & Guénard, Benoit, 2022, Remarkable diversity in a little red dot: a comprehensive checklist of known ant species in Singapore (Hymenoptera: Formicidae) with notes on ecology and taxonomy, pp. 1-152 in Asian Myrmecology (e 015006) (e 015006) 15 on page 82, DOI: 10.20362/am.015006, http://zenodo.org/record/15473703