Temnothorax barrettoi Hamer & Guénard, 2023: 119, figs. 1, 2, 5 (w.) CHINA (Hong Kong). Indomalaya.

Primary type information: Primary type material: holotype worker. Primary type locality: China: Hong Kong SAR, New Territories (Tai Po), Tai Po Kau Headland, 22°26′06.0″ N, 114°11′35.52″ E, 70 m a.s.l., 19-26.viii.2022, leaf litter collected in a line transect of 5 samples each 0.25 m² with silftrate extracted in a Winkler for 7 days (Matthew T. Hamer and André Ibáñez). Primary type depository: ZRC. Primary type specimen: ANTWEB1010973 [TPK1T2W1-21].