Primary type information:
Primary type material: lectotype worker (by designation of Radchenko, 2007: 28). Primary type locality: lectotype Finland: Helsingfors (= Helsinki) (W. Nylander). Primary type depository: ZMHF.
Secondary type information:
Secondary type material: 6 paralectotype workers, 2 paralectotype queens. Secondary type locality: same as for lectotype. Secondary type depository: ZMHF.