Ectatomma brunneum

Distribution based on Regional Taxon Lists
Neotropical Region: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Paraguay, Peru, Suriname.

Nomenclature

 * quadridens. Formica quadridens Fabricius, 1793: 362 (w.) FRENCH GUIANA. [Junior primary homonym of Formica quadridens De Geer, 1773: 609 (now in Cephalotes).] Junior synonym and hence first available replacement name: Ectatomma brunnea Smith, F. 1858b: 103; designated by Bolton, 1995b: 187. Mann, 1916: 405 (m.); Santschi, 1921g: 83 (q.); Wheeler, G.C. & Wheeler, J. 1952a: 131 (l.). Combination in Ectatomma: Mayr, 1862: 732. Senior synonym of brunnea: Roger, 1860: 307.
 *  brunneum. Ectatomma brunnea Smith, F. 1858b: 103 (w.q.) BRAZIL. Junior synonym of quadridens: Roger, 1860: 307, and hence first available replacement name for Formica quadridens Fabricius, 1793: 362. [Junior primary homonym of Formica quadridens De Geer, 1773: 609 (now in Cephalotes).]; designated by Bolton, 1995b: 186.

Ectatomma brunnea

Syntype worker in. “Santarem” (Brazil). The syntype queen can not be positively identified. In there is another worker and another queen, also from the type-locality of Santarem, but the worker has passed through the Farren White collection.