Formica obscura Smith, 1858a: 42 (q.) BRAZIL. Neotropic.

Primary type information: Primary type material: holotype queen. Primary type locality: Brazil: (no further data). Primary type depository: unknown (“Coll. D. Swainson, Esq.”). Type notes: Presumed lost; the holotype can not be found in BMNH or OXUM (MacKay, 1993b: 80).