94 research outputs found

    Selymbria Stål, 1861 (Hemiptera: Cicadidae: Tibicininae): description of a new species with notes on the genus taxonomy and distribution

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    Selymbria amazonensis sp. nov. is described and illustrated from Brazil. An illustrated taxonomic key for males and females is provided. We include distribution maps and comments on their morphology, geographical distribution, and life history

    Revisão taxonômica e análise cladística de Kanaima Distant, 1909 (hemiptera, cercopidae, ischnorhininae, ischnorhinini)

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    The members of Cercopidae are usually called in Brazil “cigarrinhas-das-pastagens” or “cigarrinhas-dos-canaviais”. Kanaima Distant, 1909 (Hemiptera, Cercopidae, Ischnorhininae, Ischnorhinini) are characterized by medium size insects, with a large vertex, wide and slightly carinate at the center, with a Neotropical distribution. In this work, a cladistic analysis of the Mahanarva group is made, comprised by four genera and two sub-genera: Aeneolamia, Kanaima, Pachypterinella, Sphenorhina, Mahanarva (Ipiranga) and Mahanarva (Mahanarva), which the main objective is to observe the relationship between the species of Kanaima and establish the phylogenetic placement of the Mahanarva group. Based on the phylogeny of the group, a taxonomic revision of the known species of Kanaima, through the exam of the type-species, specimens collected on the field and material available on scientific collections. In this work two species of Kanaima are redescribed: K. katzensteinii (Berg, 1879); K. fluvialis (Lallemand, 1924); five new combinations are proposed: Mahanarva (Mahanarva) radiata comb. nov. (Walker, 1851); Mahanarva (Ipiranga) fortunata comb. nov. (Lallemand, 1924), K. fusca comb. nov. (Lallemand, 1927), Mahanarva (Ipiranga) vittata comb. nov. (Walker, 1851) and Mahanarva (Mahanarva) dubia comb. nov. (Stancik & Cavichioli, 2003); and a new species: K. nigra sp. nov. and three new species of Mahanarva (Mahanarva): M. (M. ) rubrovenata sp. nov., M. (M. ) webbi sp. nov. and M. (M. ) dabliosignata sp. nov.Os Cercopidae comumente chamados de “cigarrinhas-das-pastagens” ou “cigarrinhas-dos- canaviais”, pertencentes à Kanaima Distant, 1909 (Hemiptera, Cercopidae, Ischnorhininae, Ischnorhinini) são caracterizados por serem insetos de porte médio, com vértice grande, largo e levemente carenado no centro, com distribuição Neotropical. Para este trabalho foi realizada uma análise cladística do grupo Mahanarva, formado por cinco gêneros; um dos quais com dois subgêneros: Aeneolamia, Kanaima, Pachypterinella, Sphenorhina, Mahanarva (Ipiranga) e Mahanarva (Mahanarva), com o objetivo de inferir as relações entre as espécies de Kanaima e estabelecer seu posicionamento no grupo Mahanarva. Com base na filogenia do grupo foi feita uma revisão taxonômica das espécies incluídas em Kanaima, através do exame das séries tipo, exemplares obtidos em campo e material disponível em coleções científicas. São descritas duas espécies de Kanaima: K. katzensteinii (Berg, 1879); K. fluvialis (Lallemand, 1924); cinco novas combinações são propostas: Mahanarva (Mahanarva) radiata comb. nov. (Walker, 1851); Mahanarva (Ipiranga) fortunata comb. nov. (Lallemand, 1924), K. fusca comb. nov. (Lallemand, 1927), Mahanarva (Ipiranga) vittata comb. nov. (Walker, 1851) e Mahanarva (Mahanarva) dubia comb. nov. (Stancik & Cavichioli, 2003); bem como uma espécie nova: K. nigra sp. nov. Além disso, três novas espécies de Mahanarva (Mahanarva) são descritas: M. (M. ) rubrovenata sp. nov., M. (M. ) webbi sp. nov. e M. (M. ) dabliosignata sp. nov

    Filogenia dos Cercopídeos Neotropicais (Hemiptera, Cercopidae, Tomaspidinae)

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    Orientador : Prof. Dr. Rodney Ramiro CavichioliTese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Biológicas, Programa de Pós-Graduação em Ciências Biológicas (Entomologia). Defesa: Curitiba, 23/02/2012Bibliografia: fls. 126-132Área de concentração: EntomologiaSem Resumo e Abstract

    Selymbria Stål, 1861 (Hemiptera: Cicadidae: Tibicininae): description of a new species with notes on the genus taxonomy and distribution

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    Abstract Selymbria amazonensis sp. nov. is described and illustrated from Brazil. An illustrated taxonomic key for males and females is provided. We include distribution maps and comments on their morphology, geographical distribution, and life history

    Clinical and radiographic diagnosis of Nasopalatine Duct cyst treated by total enucleation - Case report / Diagnóstico clínico e radiográfico de cisto do Ducto Nasopalatino tratado por enucleação total - Relato de caso

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    The nasopalatine duct cyst presents as a cyst of non-odontogenic origin, whose etiology has not yet been defined. However is believed in the theory of the proliferation of embryonic remains of the nasopalatine duct that leads to its formation. It is often detected in routine radiological examinations, which shows characteristics of a radiolucent lesion, defined, with a radiopaque halo, with a heart format due to overlapping of the anterior nasal spine. Because of this, it can be easily confused with an inflammatory periapical cyst from the upper central incisors. Besides, clinically the patient may complain of pain and swelling in the anterior region of the hard palate. The pain, pus, and swelling are usually associated with secondary infection. The present study aims to report a successful clinical case, of the diagnosis of a nasopalatine duct cyst, where the pulp sensitivity test and computed tomography helped in the treatment, that consisted in palatal access and total enucleation of the lesion. The recurrence of this cyst is low and usually affects adults from the fourth to the sixth decade of life. Treatment consists of total enucleation for small cysts or marsupialization followed by enucleation for larger cysts. This way, the imaging exams, and the clinical exam assist in the correct diagnosis, enabling the correct treatment. In our case, the total enucleation of the lesion was satisfactory, since, it did not cause damage to the adjacent structures and was the definitive treatment in only one surgical time. The patient continues been followed up, not showing symptoms or recurrence. 

    Brocossomos de ovos de espécies de Proconiini (Hemiptera: Cicadellidae, Cicadellinae) associadas à cultura da videira

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    A produção de brocossomos é considerada uma característica dos Cicadellidae e pode representar uma inovação importante no desenvolvimento e diversificação deste grupo. O objetivo do estudo foi identificar as espécies de Proconiini formadoras de brocossomos de ovos associadas à cultura da videira na região da Serra Gaúcha. As características dos brocossomos de ovos e uma chave para identificação também são discutidas. Os espécimes foram coletados com cartões adesivos amarelos em quatro vinhedos (Vitis vinifera L.) no período de outubro de 2004 a maio de 2006. Foram identificadas oito espécies com capacidade de produzir brocossomos de ovos: Acrogonia citrina Marucci & Cavichioli; Homalodisca ignorata Melichar; Molomea consolida Schröder; Molomea lineiceps Young; Molomea personata (Signoret); Oncometopia facialis (Signoret); Oncometopia fusca Melichar e Tapajosa rubromarginata (Signoret). Os brocossomos de ovos são estruturas que podem ser utilizadas na identificação de espécies de Proconiini em videira.Brochosomes production is considered a feature of Cicadellidae, and may represent an outstanding innovation which has played an important role in the development and diversification of this insect group. The objective of this study was to identify the species of Proconiini that produced egg brochosomes associated with grapevines in the Serra Gaúcha region of Brazil. Egg brochosome characteristics and an identification key are also discussed. The specimens were collected using yellow sticky cards in four vineyards (Vitis vinifera L.) from October 2004 to May 2006. Eight species capable of producing egg brochosomes were identified:Acrogonia citrina Marucci & Cavichioli; Homalodisca ignorata Melichar; Molomea consolida Schröder; Molomea lineiceps Young; Molomea personata (Signoret); Oncometopia facialis (Signoret); Oncometopia fusca Melichar; and Tapajosa rubromarginata (Signoret). Egg brochosomes are useful structures to identify Proconiini species in vine
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