Monomorium (Monomorium) longiceps Karavaiev, 1935a: 94, fig. 20 (w.) VIETNAM. Indomalaya.

Primary type information: Primary type material: 3 syntype workers. Primary type locality: 2 workers Vietnam (“Südannam”): Dalat, Lang Biang, 1500 m., 26.i.1931 (K.N. Davydov), 1 worker with same data but also numbered 5796. Primary type depository: SIZK.