Messor chamberlini Wheeler, 1915b: 410 (w.) U.S.A. (California). Nearctic.

Primary type information: Primary type material: lectotype worker (by designation of Johnson et al., 2022: 27). Primary type locality: lectotype U.S.A.: California, Santa Barbara County, Santa Cruz I. (R.V. Chamberlin). Primary type depository: USNM. Primary type specimen: USNMENT00529080 (lectotype). Secondary type information: Secondary type material: 11 paralectotype workers. Secondary type locality: same as for lectotype. Secondary type depositories: LACM, MCZC, USNM. (Source: Johnson et al., 2022: 27.)