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Diversity of Portanini (Insecta: Hemiptera: Cicadellidae) from Parque Nacional do Itatiaia, Southeastern Brazil, with descriptions of two new species

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Abstract

A survey of Portanini (Insecta: Hemiptera: Cicadellidae) from Parque Nacional do Itatiaia, Southeastern Brazil was conducted. This survey resulted in an increase of the known diversity of Portanini from one to four species in the area. Portanus youngi Linnavuori, 1959 is newly recorded from Minas Gerais State and Itatiaia and Resende municipalities (Rio de Janeiro State), while Portanus felixi Carvalho, 2012 is newly recorded from the municipality of Itatiaia (Rio de Janeiro State). In addition, two new species of Portanini are described: Portanus cornutus sp. nov. and Portanus spherae sp. nov. from Rio de Janeiro State. The former can be distinguished from other Portanus species by four short longitudinal white stripes on posterior margin of crown and pygofer lobe long and with ventrally curved processes. The latter can be distinguished from other Portanus species by a pair of long posteroventral spiniform processes on pygofer; aedeagus with long preatrium, robust atrium, long dorsal apodemes, and shaft directed dorsally; and internal female sternite VIII sclerotized.

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This chapter describes the diversity of the Auchenorrhyncha, for which the authors apply the common name "true hoppers" as shorthand for leafhoppers, planthoppers, treehoppers, froghoppers, and cicadas, and as a parallel appellation for "true bugs" commonly used for Heteroptera. The Auchenorrhyncha are a suborder of Hemiptera, along with the Heteroptera (true bugs), Sternorrhyncha (aphids, scale insects, psyllids, and allies), and Coleorrhyncha (moss bugs). The true hoppers include two lineages, the Cicadomorpha (cicadas, leafhoppers, treehoppers, spittlebugs, and allies) and the Fulgoromorpha (planthoppers). The true hoppers are especially important as vectors of plant pathogens. At present, apparent patterns of diversity may be strongly influenced by irregularities in taxonomic investigations, but they accurately represent the current state of knowledge. The influence of the Auchenorrhyncha on all types of ecosystems is significant. Tight ecological associations between the Auchenorrhyncha and their hosts may make them useful as indicators of ecological health.
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Two new species, Portanus restingalis and Paraportanus marica, are described and illustrated from Restinga de Maricá, a sandy coastal plain in Rio de Janeiro State, Southeastern Brazil. Comparative notes on the two new species are given. Portanus youngi and Paraportanus eburatus are newly recorded from Brazil and Guyana, respectively. A checklist of all known species of Portanini with their geographic distribution is provided.
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Se provee claves ilustradados para los adultos que reflejan la clasificación jerárquica actual para las familias de Cicadomorpha (cigarras, cercopidos, chicharas y membrácidos) y para las subfamilias y tribus de Cicadellidae (chicharras), excluyendo los Deltocephalinae. Se reconoce las familias (y superfamilias) siguientes: Cicadidae y Tettigarctidae (Cicadoidea); Aphrophoridae, Cercopidae, Clastopteridae, Epipygidae y Machaerotidae (Cercopoidea); Aetalionidae, Cicadellidae, Melizoderidae, Membracidae, y Myerslopiidae (Membracoidea). La clasificación jerárquica de la familia Cicadellidae esta actualmente bajo una revisión taxonómica, pero se provee una clave provisional de las subfamilias y tribus (menos los Deltocephalinae). Se propone dos sinónimos nuevos: Signoretiinae Baker, 1915 es igual que Phlogisinae Linnavuori, 1979, sinónimia nueva; y Iassini Walker, 1870, es igual que Hyalojassini Evans, 1972, sinónimia nueva.
Mapeamento da cobertura da terra do Parque Nacional do Itatiaia com a plataforma cognitiva InterIMAGE. XVI Simpósio Brasileiro de Sensoriamento Remoto
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