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