Strumigenys rotogenys Bolton, 2000

(Fig. 5A–D)

Strumigenys rotogenys Bolton, 2000: 769, figs 426, 491 (worker; type locality: Borneo, Sarawak, Long Pala, lowland rainforest).

Material examined. Indonesia, West Sumatra Prov., Padang, Bungus Teluk Kabung, Teluk Kabung Utara, Cindakir, Lubuk Hitam, Tiga Tingkat waterfall, 1°03′09.1″S 100°25′29.4″E, ca. 130 m, disturbed forest, Winkler extraction, 12. VI .2021, 1 worker (individual code SEMUT 19vi2021 B), R. Satria leg.

Distribution. Widespread in the Indo-Malayan Subregion: Thailand (Khachonpisitsak et al., 2020), Malay Peninsula (Mustafa et al., 2011), Borneo (Bolton, 2000), Sumatra (present study).

Remarks. New record for Sumatra. Only single specimen was collected from the leaf litter layer by using Winkler extraction method. So far, there is no information about its habitat, life history, etc.