Formica arborea Smith, 1858a: 44 (w.) BRAZIL. Neotropic.

Primary type information: Primary type material: syntype workers (number not stated). Primary type locality: Brazil: (no further data). Primary type depository: BMNH. Type notes: Smith, 1858a: 45, says “several specimens… in Museum Collection”, and that one specimen is labelled “Island of Morajo, Brazil” (= Pará, Marajó I.).