Primary type information:
Primary type material: holotype worker. Primary type locality: U.S.A.: Missouri, St Charles County, Droste Woods, 10.xi.1948, no. 48-2 (M. Talbot). Primary type depository: USNM.
Secondary type information:
Secondary type material: 26 paratype workers, 1 paratype queen. Secondary type locality: 15 paratype workers with same data as holotype, 11 paratype workers, 1 paratype queen with same data as holotype but 6.x.1952, no. 52-12. Secondary type depository: USNM.