Primary type information:
Primary type material: holotype major worker. Primary type locality: Vietnam: Ninh Binh Prov., Cuc Phong Nat. Park (20°14’N, 105°36’E, 370 m.), Eg01-VN-176 (K. Eguchi). Primary type depository: IEHV.
Secondary type information:
Secondary type material: 18 paratype major workers, 20 paratype minor workers, 1 paratype queen. Secondary type locality: same as for holotype. Secondary type depositories: IEHV, KEPC, MCZC, MHNG.