Beetles of genus Rhinochenus sp. (Coleoptera: Curculionidae) damage the seeds of species of flora of Brazilian savannah such as jatobá (Hymenea courbaril L.) and copaiba (Copaifera langsdorffii Desf.). Thus, the objective of the present was to evaluate the morphology of pupae and adult R. stigma, as well as behavioral aspects such as emission of sounds, to assist in sexing this species. The insects were obtained from jatobá fruits collected in São Gonçalo do Rio Preto, Minas Gerais State, Brazil. The morphometric characteristics of both phases did not differ by t test, being not safe for the differentiation of the sexes. For adults of R. stigma, sexing was possible only after death, by dissection of the genitalia.
Forest pest; Savannah; Sexing
