Primary type information:
Type-material: holotype worker. Type-locality: Vietnam: Bac Giang Prov., Tay Yen Tu Nat. Park, 21°10’11’’N, 106°43’06’’E, 28.v.2004, Eg04-VN-138 (K. Eguchi). Type-depository: IEHV.
Secondary type information:
Paratype-material: 44 paratype workers (of which 2 slide-mounted). Paratype-locality: same as for holotype. Paratype-depositories: BMNH, IEHV, KEPC, MCZC, MHNG, MNHA.