Primary type information:
Type-material: lectotype queen (by designation of DuBois, 1981b: 36). Type-locality: lectotype U.S.A.: Washington, D.C., 12.vii., in nest of Monomorium minimum (T. Pergande). Type-depository: USNM.
Secondary type information:
Paratype-material: paralectotype queens, paralectotype males (numbers not stated). Paratype-locality: same as for lectotype. Paratype-depositories: MCZC, MSNG, USNM.