Abstract
Plistonax Thomson, 1864 is a Neotropical genus of longhorned beetles (Cerambycidae: Lamiinae) currently composed of six species. Herein, we describe a new species (Plistonax albituberculatus Silva Júnior & Souza sp. nov.) from Brazilian States of Rio de Janeiro and Bahia. We also propose the transference of Exalphus hefferni Audureau, 2017 to Plistonax, resulting in the following comb. nov.: Plistonax hefferni (Audureau, 2017).
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