Navegando por Assunto "Orthoptera"
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Item Description and ecology of a new species of the cricket genus Endecous (Orthoptera: Grylloidea: Phalangopsidae) in the speleological province of Arcos-Pains-Doresópolis, Southeastern Brazil(2020-07-31) AntÔnio Castro-Souza, Rodrigo; Gabriel Pereira Junta, Vitor; Lopes Ferreira, RodrigoA new cricket species of the genus Endecous Saussure, 1878 is described in the present work found in the speleological province of Arcos-Pains-Doresópolis, which belongs to the limestone group Bambuí, Brazil. Moreover, the spatial distribution of the new species was related to the species Eidmanacris sp., which co-occurs with the former in several caves. Relationships between species abundance and horizontal projection, number of entrances and environmental stability of the caves where these species coexist were evaluated. The presence of bilateral symmetry in individuals of Endecous painensis n. sp. perhaps due to environmental stress caused by mining activities surrounding the cave was also tested. Endecous crickets are commonly observed in the caves, for which the preference by distinct microhabitats and generalist strategies may be key factors explaining colonization and segregation in relation to other cricket species in subterranean habitats. The generalist lifestyle of the here described species may attenuate the effects environmental stresses over development.Item Expanding the taxonomic knowledge of Adelosgryllus Mesa & Zefa, 2004 (Orthoptera: Grylloidea: Phalangopsidae): description of four new species for Brazilian subterranean habitats(2022-05-03) MERLO, RAYANNE LAYS SANT’ANA; CASTRO-SOUZA, RODRIGO ANTÔNIO; JUNTA, VITOR GABRIEL PEREIRA; FERREIRA, RODRIGO LOPESIn this study, four new Brazilian species are described for the genus Adelosgryllus Mesa & Zefa, 2004, occurring in Minas Gerais, Tocantins and Pará states. Three of these species were found in caves and one was found in endogenous habitats, representing the first record of species form this genus for such habitats. The morphology of the phallic complex was used as the main criterion for distinguishing the new species, the copulatory papilla was also described for one of the new species. Finally, we bring a brief discussion about the ecology, distribution, and conservation of these species.Item Expanding the taxonomic knowledge of Adelosgryllus Mesa & Zefa, 2004 (Orthoptera: Grylloidea: Phalangopsidae): description of four new species for Brazilian subterranean habitats(2022-05-03) Merlo, Rayanne Lays Sant'ana; Castro-Souza, Rodrigo Antônio ; Junta, Vitor Gabriel Pereira ; Ferreira, Rodrigo LopesIn this study, four new Brazilian species are described for the genus Adelosgryllus Mesa & Zefa, 2004, occurring in Minas Gerais, Tocantins and Pará states. Three of these species were found in caves and one was found in endogenous habitats, representing the first record of species form this genus for such habitats. The morphology of the phallic complex was used as the main criterion for distinguishing the new species, the copulatory papilla was also described for one of the new species. Finally, we bring a brief discussion about the ecology, distribution, and conservation of these species.- Five new species of Phalangopsis Serville, 1831 (Orthoptera: Phalangopsidae) from Brazilian caves in the Amazon Forest(2020-10-06) PEREIRA JUNTA, VITOR GABRIEL; CASTRO-SOUZA, RODRIGO ANTÔNIO; LOPES FERREIRA, RODRIGOThe current work presents the description of five new cricket species for the genus Phalangopsis Serville, 1831 found in Brazilian caves in the Amazonas, Mato Grosso and Pará states, northern Brazil. The morphology of the phallic complex was used as the main criterion for distinguishing the species. In addition, we present data on the natural history and ecology of the new species as well as hypothesis about the variations of tegmina size in relation to the subterranean lifestyle for the genus. Finally, we provide a pictorial key based on adult males for the Phalangopsis species.
Item A New Cave Cricket of the Genus Endecous from Southeastern Brazil and Characterization of Male and Female Genitalia of E. itatibensis Rehn, 1918 (Orthoptera: Grylloidea: Phalangopsidae: Luzarinae)(Journal of Orthoptera Research, 1998) Mello, Francisco de A. G.; Franco, Flávia PellegattiItem A new troglophilic species of Erebonyx (Orthoptera: Grylloidea: Phalangopsidae) from Brazilian caves(2022-12-16) Merlo, Rayanne Lays Sant'ana ; Castro-Souza, Rodrigo Antônio ; Bento, Diego de Medeiros ; Ferreira, Rodrigo LopesThe genus Erebonyx was proposed to accommodate a single troglobitic species from northeastern Brazil. A second cricket belonging to this genus is herein described, but although it was also found in caves, it does not bear any troglomorphic traits, suggesting it is a troglophilic species. The new species differs from the other species on the genus in the phallic sclerites, presence of developed eyes (with ommatidia), pigmented integument, and the presence of stridulatory file on the tegmina. In addition, we present the description of the external morphology, together with the staining and description of tegmina. Finally, we present a brief discussion regarding its habitat, distribution and possible conservation actions for the species.Item The first record of Adelosgryllus Mesa & Zefa, 2004 (Orthoptera: Grylloidea: Phalangopsidae) from caves, with the description of a new species from Brazil(2004) MERLO, RAYANNE LAYS SANT’ANA; CASTRO-SOUZA, RODRIGO ANTÔNIO; JUNTA, VITOR GABRIEL PEREIRA; FERREIRA, RODRIGO LOPESThe first species for the genus Adelosgryllus Mesa & Zefa, 2004 recorded in caves is herein described. We used the morphology of the phallic complex as the main criteria to differentiate this species from the congeneric ones. In addition, we discussed the natural history of the new species, some aspects of its association to the cave habitats, and the intraspecific variation of the right tegmen observed in two populations of this new species.