Type notes:
Material included: U.S.A.: Massachusetts, Dedham, no. 3, 3B, 3C (J. Enzmann); workers, queens, males, deposited “in my private collection”; whereabouts unknown, now lost (no type status).
As unavailable (infrasubspecific) name: Smith, 1951c: 810.
Declared as unavailable (infrasubspecific) name: Bolton, 1995b: 160