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      OCCURRENCE AND CHARACTERIZATION OF INSECT GALLS IN THE FLORESTA NACIONAL DE SILVÂNIA, BRAZIL

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          Abstract

          ABSTRACT In the present paper we investigated the insect gall distribution along savanna and forest sites in the Floresta Nacional de Silvânia, Goiás, Brazil. The insect gall fauna was surveyed bi-monthly between December 2009 and June 2010. In total we found 186 insect gall morphotypes, distributed on 35 botanical families and 61 plant species. Ninety-nine insect gall morphotypes were recorded in the forest and 87 in the savanna. Gall-inducing insects belonged to Coleoptera, Diptera, Hemiptera, Lepidoptera and Thysanoptera, with highlight to Cecidomyiidae (Diptera) that induced 34.1% of the gall morphotypes. Parasitoids and/or inquilines were recorded in 38 morphotypes, mainly from the families Eulophidae, Eurytomidae and Torymidae (Hymenoptera). Fabaceae was the botanical family with the greatest richness of galls, followed by Asteraceae and Sapindaceae, being Protium (Burseraceae), Siparuna (Siparunaceae) and Serjania (Sapindaceae) the main host genera. This is the first systematic survey of insect galls realized in the Flona-Silvânia, which result in six plant species are recorded for the first time in Brazil as host of insect galls.

          Translated abstract

          RESUMO No presente estudo foi investigada a distribuição de galhas de insetos ao longo de áreas de cerrado e floresta na Floresta Nacional de Silvânia, Goiás, Brasil. A fauna de insetos galhadores foi amostrada bimensalmente entre dezembro de 2009 e junho de 2010. No total foram encontrados 186 morfotipos de galhas de insetos, distribuídos em 35 famílias botânicas e 61 espécies de plantas. Foram registrados 99 morfotipos de galhas de insetos na floresta e 87 no cerrado. Os insetos galhadores pertenceram à Coleoptera, Diptera, Hemiptera, Lepidoptera e Thysanoptera, com destaque para Cecidomyiidae (Diptera) que induziu 34,1% dos morfotipos de galhas. Parasitoides e/ou inquilinos foram registrados em 38 morfotipos de galhas, principalmente das famílias Eulophidae, Eurytomidae e Torymidae (Hymenoptera). Fabaceae foi a família botânica com maior riqueza de galhas, seguida por Asteraceae e Sapindaceae, enquanto Protium (Burseraceae), Siparuna (Siparunaceae) e Serjania (Sapindaceae) foram os principais gêneros hospedeiros. Este é o primeiro levantamento sistemático de galhas de insetos na Flona-Silvânia, o que resultou em seis espécies de plantas sendo registradas pela primeira vez no Brasil como hospedeiras de galhas de insetos.

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          Most cited references32

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          Conservation of the Brazilian Cerrado

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            The gall midges of the Neotropical Region

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              Are gall midge species (Diptera, Cecidomyiidae) host-plant specialists?

              Despite the speciose fauna of gall-inducing insects in the Neotropical region, little is known about their taxonomy. On the other hand, gall morphotypes associated with host species have been extensively used as a surrogate of the inducer species worldwide. This study reviewed the described gall midges and their galls to test the generalization on the use of gall morphotypes as surrogates of gall midge species in the Brazilian fauna. We compiled taxonomic and biological data for 196 gall midge species recorded on 128 host plant species. Ninety two percent of those species were monophagous, inducing galls on a single host plant species, whereas only 5.6% species were oligophagous, inducing galls on more than one congeneric host plant species. Only four species induced galls on more than one host plant genus. We conclude that gall morphotypes associated with information on the host plant species and attacked organs are reliable surrogates of the gall-inducing species.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                paz
                Papéis Avulsos de Zoologia
                Pap. Avulsos Zool.
                Museu de Zoologia da Universidade de São Paulo (São Paulo, SP, Brazil )
                0031-1049
                1807-0205
                2017
                : 57
                : 32
                : 413-431
                Affiliations
                [2] Montes Claros Minas Gerais orgnameUniversidade Estadual de Montes Claros orgdiv1Centro de Ciências Biológicas e da Saúde orgdiv2Depto. de Biologia Geral Brazil
                [1] Goiânia Goiás orgnameUniversidade Federal de Goiás orgdiv1Instituto de Ciências Biológicas orgdiv2Departamento de Ecologia Brazil
                Article
                S0031-10492017003200413
                10.11606/0031-1049.2017.57.32
                6d32161e-130e-4938-955a-8b53e096c331

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

                History
                : 29 June 2017
                : 15 September 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 34, Pages: 19
                Product

                SciELO Brazil


                Cecidomyiidae,Cerrado,Fabaceae,Interação inseto-planta,Plant-insect interaction

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