Messor lobognathus Andrews, 1916a: 82, fig. 1 (w.) U.S.A. (Colorado). Nearctic.

Primary type information: Primary type material: lectotype worker (by designation of Johnson et al., 2022: 61). Primary type locality: lectotype U.S.A.: Colorado, Glenwood Springs, 5750 ft, no date (T.D.A. Cockerell). Primary type depository: USNM. Primary type specimen: CASENT0105632 (lectotype). Secondary type information: Secondary type material: 1 paralectotype worker. Secondary type locality: same as for lectotype. Secondary type depository: MCZC. (Source: Johnson et al., 2022: 61.) Type notes: Original description cites 4 worker syntypes.