Leptothorax minutissimus Smith, 1942a: 59, pl. 6 (q.) U.S.A. (District of Columbia). Nearctic.

Primary type information: Primary type material: holotype queen. Primary type locality: U.S.A.: District of Columbia, Eastern Branch, 6.i.1921 (H.S. Barber). Primary type depository: USNM. Secondary type information: Secondary type material: 3 paratype queens. Secondary type locality: same as for holotype. Secondary type depository: USNM.