Primary type information:
Type-material: lectotype worker (by designation of Francoeur et al., 1985: 381). Type-locality: lectotype U.S.A.: Washington, Fort Lewis, 15.x.1938 (F. Smith). Type-depository: USNM.
Secondary type information:
Paratype-material: 1 paralectotype worker, 1 paralectotype ergatoid queen. Paratype-locality: same as for lectotype. Paratype-depository: USNM.