Formica arborea Smith, 1858 an obsolete combination of Camponotus arboreus (Smith, 1858)
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 that one specimen is labelled “Island of Morajo, Brazil” (= Marajó I., Pará State).