Atta sexdens

Distribution
This taxon was described from ""America meridionali"".

Nomenclature

 *  sexdens. Formica sexdens Linnaeus, 1758: 581 (w) "America meridionali". Mayr, 1865: 82 (q.m.); Wheeler, G.C. 1949: 681 (l.). Combination in Atta: Fabricius, 1804: 422; in Atta (Neoatta): Gonçalves, 1942: 349. Senior synonym of sexdentata: Latreille, 1802a: 228; of abdominalis, coptophylla: Mayr, 1865: 80; of flavicornis: Forel, 1905b: 161; of autuorii, fuscata, piriventris (and its junior synonym lugens), and rubropilosa: Borgmeier, 1959b: 359.
 * flavicornis. Formica flavicornis Fabricius, 1789: 280 (q.) SURINAM. Junior synonym of sexdens: Forel, 1905b: 161.
 * sexdentata. Formica sexdentata Latreille, 1802a: 228, pl. 9, figs. 59, 60 (w.) FRENCH GUIANA. Junior synonym of sexdens: Latreille, 1802a: 228.
 * coptophylla. Atta coptophylla Guérin-Méneville, 1844a: 422 (w.) BRAZIL. Junior synonym of sexdens: Mayr, 1865: 80.
 * abdominalis. Oecodoma abdominalis Smith, F. 1858b: 184, pl. 10, fig. 22 (q.) no locality given ("various parts of South America"). Combination in Atta: Roger, 1863b: 35. Junior synonym of sexdens: Mayr, 1865: 80.
 * rubropilosa. Atta sexdens var. rubropilosa Forel, 1908c: 348 (w.q.m.) BRAZIL. Subspecies of sexdens: Santschi, 1929f: 93; Borgmeier, 1939: 422; Gonçalves, 1947a: 187. Junior synonym of sexdens: Borgmeier, 1959b: 359.
 * piriventris. Atta vollenweideri var. piriventris Santschi, 1919f: 50 (w.) ARGENTINA. Subspecies of sexdens and senior synonym of lugens: Gonçalves, 1942: 351. Junior synonym of sexdens: Borgmeier, 1959b: 359.
 * fuscata. Atta sexdens var. fuscata Santschi, 1922b: 362 (w.) BOLIVIA. Subspecies of sexdens: Gonçalves, 1942: 350. Junior synonym of sexdens: Borgmeier, 1959b: 359.
 * lugens. Atta vollenweideri var. lugens Borgmeier, 1939: 424, fig. 19 (w.) BRAZIL. Junior synonym of piriventris: Gonçalves, 1942: 351.
 * autuorii. Atta (Neoatta) sexdens subsp. autuorii Borgmeier, 1950d: 253, figs. 32-34 (w.q.m.) BRAZIL. Junior synonym of sexdens: Borgmeier, 1959b: 359.