Primary type information: Primary type material: holotype worker. Primary type locality: U.S.A.: Iowa, Spirit Lake (W.F. Buren). Primary type depository: USNM. Secondary type information: Secondary type material: paratype workers, paratype queens, paratype males (numbers not stated, “numerous”). Secondary type localities: paratypes: with same data as holotype, U.S.A.: Minnesota, Wheaton (no collector’s name). Secondary type depositories: ISUI, LACM, USNM.