Primary type information:
Primary type material: holotype worker. Primary type locality: Malaysia: N Kiduk Arok, Trus Madi Massif, 1500 m., ix.1956, Cambridge N Borneo Expd, no. 49 (P.W. Bryant). Primary type depository: MCZC.
Secondary type information:
Secondary type material: 6 paratype workers. Secondary type locality: 5 paratype workers with same data as holotype, 1 paratype worker with same data as holotype but no. 78. Secondary type depositories: BMNH, MCZC.