Primary type information:
Primary type material: holotype worker. Primary type locality: Bhutan: Dorjula, 3100 m., 26.vi.1972, NHMB-Bhutan Expd. 1972. Primary type depository: NHMB.
Secondary type information:
Secondary type material: 21 paratype workers, 1 paratype queen. Secondary type localities: 9 paratype workers, 1 paratype queen with same data as holotype, 6 paratype workers with same data as holotype but 6.vi.1972, 6 paratype workers Dorjula, 2450-3100 m., 6.vi.1972, NHMB-Bhutan Expd. 1972. Secondary type depositories: BMNH, NHMB, OXUM, SIZK.