Primary type information:
Primary type material: holotype major worker. Primary type locality: Vietnam: Ninh Binh Prov., Cuc Phuong Nat. Park (“Dong Nguoi Xua” Area), Eg09vi05-08, 9.vi.2005 (K. Eguchi). Primary type depository: IEHV.
Secondary type information:
Secondary type material: 7 paratype major workers, 9 paratype minor workers, 2 paratype males. Secondary type locality: same as for holotype. Secondary type depositories: IEHV, KEPC, MCZC, MHNG.