Primary type information:
Primary type material: lectotype worker (by designation of Francoeur, 1973: 122). Primary type locality: lectotype U.S.A.: California, Humboldt County, Blue Lake, 20-27.vi.1907 (J.C. Bradley). Primary type depositories: MCZC.
Secondary type information:
Secondary type material: 11 paralectotype workers. Secondary type locality: same as for lectotype. Secondary type depositories: AFPC, MCZC, LACM, USNM.