Taxonomic history
Replacement name for Ectatomma quadridens (Fabricius, 1793). [Junior primary homonym of Cephalotes quadridens (De Geer, 1773).].Junior synonym of Ectatomma quadridens (Fabricius, 1793): Roger, 1860 PDF: 307; Roger, 1863b PDF: 17; Mayr, 1863a PDF: 410; Dalla Torre, 1893 PDF: 25; Forel, 1895b PDF: 112; Wheeler, 1908a PDF: 123; Emery, 1911e PDF: 43; Bruch, 1916 PDF: 295; Gallardo, 1918a PDF: 32; Borgmeier, 1923: 58; Kempf, 1972b PDF: 105.[Note: Ectatomma brunneum Smith, 1858 junior synonym of Ectatomma quadridens (Fabricius, 1793) (synonymy by Roger, 1860 PDF: 307); hence Ectatomma brunneum Smith, 1858 first available replacement name (Bolton, 1995b: 186).].Status as species: Bolton, 1995b: 186; Wild, 2007b PDF: 26; Arias-Penna, 2008b PDF: 60; Bezděčková et al., 2015 PDF: 110; Feitosa, 2015c: 97; Feitosa & Prada-Achiardi, 2019 PDF: 665.Alto Paraguay, Alto Paraná , Amambay, Boquerón , Caaguazú , Canindeyú , Central, Cordillera, Guairá , Itapúa , Misiones, Paraguarí , Pte. Hayes, San Pedro (ALWC, IFML, INBP, LACM, NHMB, NHMW). Literature records: Central, Guairá , “Paraguay” (s. loc.) (Emery 1906, Forel 1895b, Forel 1907b).
