Primary type information:
Primary type material: 3 syntype workers. Primary type localities: 2 workers Vietnam: central Annam, Lien Cheu, nr Tourane, foot of Nuage pass, ix.1931, no. 5799 (K. Davydov), 1 worker Vietnam: S Annam, Lang Biang, Arbre Broyé, 1500 m., no. 5800 (K. Davydov). Primary type depository: SIZK.