Primary type information:
Type-material: holotype worker. Type-locality: Vietnam: Thai Nguyen, Na Hau Village, My Yen Comm. Forest, 8.xi.2001, VN01-SKY-29 (Sk. Yamane). Type-depository: VNMN.
Secondary type information:
Paratype-material: 4 paratype workers. Paratype-locality: same as for holotype. Paratype-depositories: SKYC, TNHM.