Distributions of 20 species of Pyramica (Formicidae: Myrmicinae: Dacetini) in Mississippi are reported. This list includes six new state records including Pyramica bimarginata (Wesson & Wesson), P. metazytes Bolton, P. ohioensis (Kennedy & Schramm), P. reflexa (Wesson & Wesson), P. talpa (Weber), and one introduced species, Pyramica hexamera (Brown), previously reported from Florida and Louisiana. In addition, records are provided for three rarely collected species, P. angulata (M. R. Smith), P. hyalina Bolton, and P. rohweri (M. R. Smith).
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MacGown et al. (2005) studied this question.
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