Primary type information:
Primary type material: lectotype worker (by designation of Radchenko, 2007: 28). Primary type locality: lectotype Finland: Helsingfors (= Helsinki), no. 5054 (W. Nylander). Primary type depository: ZMHF.
Secondary type information:
Secondary type material: 5 paralectotype workers. Secondary type locality: 2 paralectotype workers with same data as lectotype, 3 paralectotype workers with same data as lectotype but no. 5055. Secondary type depository: ZMHF.