Rhopalomastix robusta Wang & Jaitrong, 2021: 150, figs. 2b, 13, 14, 15, 16a (w.) THAILAND. Indomalaya.

Primary type information: Type-material: holotype worker. Type-locality: Thailand: Central Thailand, Nakhon Nayok Province, Muaeng District, Ban Hin Subdistrict, 14°26′14″ N, 101°22′33″ E, 927 m., hill evergreen forest, nest in bark of Toona ciliata M. Roem., 8.i.2018, colony code: WJT080118-1 (W. Jaitrong). Type-depository: THNHM. Type-specimen: THNHM-I-21782. Secondary type information: Paratype-material: 106 paratype workers. Paratype-locality: 19 paratype workers with same data as holotype, 87 paratype workers with same data as holotype but colony code: WJW-THL19-007 (W. Wang & W. Jaitrong). Paratype-depositories: THNHM, ZRC. Paratype-specimens: THNHM-I-21783 to THNHM-I-21801; ZRC_ENT00013949.1 to ZRC_ENT00013949.77; GenBank: MW267049 to MW267051.