Primary type information:
Type-material: holotype worker. Type-locality: Indonesia: W Sumatra, Sitiung, 7.i.1992, F192-153 (F. Ito). Type-depository: MZBJ.
Secondary type information:
Paratype-material: 3 paratype workers, 1 paratype queen. Paratype-locality: same as for holotype. Paratype-depositories: MCZC, MHNG, SKYC.