Primary type information:
Primary type material: holotype major worker. Primary type locality: Vietnam: Lao Cai Prov., Sa Pa, Y Lin Ho (ca 1100 m.), Eg02-VN-210, 1.v.2002 (K. Eguchi). Primary type depository: IEHV.
Secondary type information:
Secondary type material: 19 paratype major workers, 21 paratype minor workers, 1 paratype queen. Secondary type locality: same as for holotype. Secondary type depositories: BMNH, IEHV, KEPC, KUIC, MCZC, MHNG, NHMW.