Primary type information:
Type-material: holotype worker. Type-locality: Vietnam: Ha Tai Prov., Ba Vi N.P. (ca 400 m.), 12.xi.1999, Eg99-VN-126 (K. Eguchi). Type-depository: VNMN.
Secondary type information:
Paratype-material: 17 paratype workers. Paratype-locality: same as for holotype. Paratype-depositories: BMNH, MCZC, SKYC, TNHM.