Type notes:
Material included: Argentina: Santiago del Estero (Merkle), Argentina: Corrientes, San Roque (Bosq), Argentina: Formosa (Joergensen); workers, deposited in NHMB (no type status).
As unavailable (infrasubspecific) name: Kusnezov, 1952f: 199.
Declared as unavailable (infrasubspecific) name: Bolton, 1995b: 91.