Formica lasioides Emery, 1893k: 664 (w.) U.S.A. (South Dakota). Nearctic.

Primary type information: Primary type material: lectotype worker (by designation of Francoeur, 1975: 258). Primary type locality: lectotype U.S.A.: South Dakota, Hill City, 21.ix.1890 (T. Pergande). Primary type depository: MSNG. Secondary type information: Secondary type material: 2 paralectotype workers. Secondary type locality: same as for lectotype. Secondary type depositories: MCZC, MSNG.

Infrasubspecies

• F. n. l. vidua Wheeler, 1913