Primary type information:
Primary type material: holotype worker. Primary type locality: Vietnam: Baitylong Archipelago (Quang Ninh Prov.), Dongho I. (=Dongkkho I.), 22.iii.1987, no. 36-87 (A. Radchenko). Primary type depository: SIZK.
Type notes:Shattuck, 2011a: 17, adds “This island is also known as Dao-Dông Khoa, Ba Mùn Island and Cao Lô Island (and probably other names) and is located approx. 100 km. ENE Hai Phòng at approx. 21°00’N 107°35’E”.