morosus. Labidus morosus Smith, F. 1859b: 6 (m.) MEXICO. Combination in Eciton (Labidus): Mayr, 1886d: 441; in Cheliomyrmex: Wheeler, W.M. 1921d: 318. Senior synonym of nortoni: Wheeler, W.M. 1921d: 324; of payarum: Borgmeier, 1955: 63. See also: Gotwald & Kupiec, 1975: 961.