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      Passalid (Insecta: Coleoptera: Passalidae) collected from trunks of Scleronema micranthum (Malvaceae) Translated title: Passalídeos (Insecta: Coleoptera: Passalidae) coletados em troncos de Scleronema micranthum (Malvaceae)

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          Abstract

          ABSTRACT Some beetles can attack the wood immediately after the tree is felled, but there are those that start their attack at different stages of wood degradation. Beetles of the family Passalidae belong to this latest category. The objective of this study was to assess the occurrence of beetles of this family in wood samples taken from trunks of Scleronema micranthum, a forest species from Central Amazon. The samples were exposed to biodegradation for 24 months on the forest ground of the Experimental Station of Tropical Silviculture of the National Institute for Amazonian Research, in Manaus, Amazon State, Brazil. During that period, 15 samples were removed from the experiment, every two months, for insect collection and evaluation of infestation. The presence of six species was recorded, all of them of the Passalini tribe: Passalus (Pertinax) latifrons, P. (Passalus) variiphyllus, P. (Pertinax) convexus, P. (Passalus) interstitialis, P. (Passalus) lanei, and Paxillus leachi. Among these species, P. (Passalus) interstitialis was the most abundant, with 18 individuals. This species was the first one to infest the samples and was found between the eighth and twentieth month of the experiment. The infestation occurred predominantly in the bark and sapwood.

          Translated abstract

          RESUMO Alguns besouros atacam a madeira imediatamente após o abate da árvore, enquanto outros preferem a madeira em diferentes estágios de degradação. Nesta categoria estão inseridos os besouros da família Passalidae. O objetivo deste estudo foi avaliar a ocorrência de besouros dessa família em amostras provenientes de troncos de Scleronema micranthum, espécie florestal da Amazônia Central. As amostras ficaram expostas à biodegradação durante 24 meses no solo da floresta da Estação Experimental de Silvicultura Tropical do Instituto Nacional de Pesquisas da Amazônia, em Manaus, Amazonas, Brasil. Durante esse período, a cada dois meses, 15 amostras foram removidas da floresta para a coleta desses insetos e avaliação da infestação. Foi registrada a presença de seis espécies, todas da tribo Passalini: Passalus (Pertinax) latifrons, P. (Passalus) variiphyllus, P. (Pertinax) convexus, P. (Passalus) interstitialis, P. (Passalus) lanei e Paxillus leachi. Dentre as espécies, P. (Passalus) interstitialis foi a mais abundante, com 18 indivíduos; foi a primeira a infestar as amostras e foi registrada entre o oitavo e o vigésimo mês do experimento. A infestação ocorreu predominantemente na casca e alburno da madeira.

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          Most cited references 29

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          Coleoptera, Passalidae: Morfología y división en grandes grupos; géneros americanos

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            Nomes vulgares de plantas amazônicas

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              Passalidae de la Guayana Francesa (Coleptera, Lamellicornia)

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                aa
                Acta Amazonica
                Acta Amaz.
                Instituto Nacional de Pesquisas da Amazônia
                1809-4392
                March 2017
                : 47
                : 1
                : 71-74
                Affiliations
                [1 ] Instituto Nacional de Pesquisas da Amazônia Brazil
                [2 ] Instituto Nacional de Pesquisas da Amazônia Brazil
                Article
                S0044-59672017000100071
                10.1590/1809-4392201601612

                This work is licensed under a Creative Commons Attribution 4.0 International License.

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                Categories
                AGRONOMY
                BIOLOGY
                ZOOLOGY

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