31 research outputs found

    New species and nomenclatural notes in Lobobrachus Sharp (Coleoptera, Carabidae, Pterostichini)

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    A new species of Lobobrachus Sharp, 1885, Lobobrachus cleidecostae sp. nov., from Piauí state, Brazil, is described and illustrated. The genus and Lobobrachus lacerdae Sharp, 1885, are redescribed and the identity of L. alternans Tschitschérine, 1901, is discussed. Based on study of all available specimens and published descriptions it appears that L. alternans cannot be diagnosed and is a synonym of L. lacerdae. However, the syntypes of L. alternans cannot be located, thereby making a final decision on synonymy impossible to substantiate fully. Photographs of the aedeagi of L. lacerdae, L. cleidecostae, and specimens that best correspond to L. alternans, including those putatively identified by Tschitschérine, are presented for the first time

    Lista dos tipos da tribo Fulcidacini (Coleoptera, Chrysomelidae, Cryptocephalinae) depositados no Museu de Zoologia da Universidade de São Paulo

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    An updated list of the types of 57 species of Fulcidacini (Chrysomelidae, Cryptocephalinae) deposited in the collection of the Museu de Zoologia da Universidade de São Paulo (MZSP) is provided. The data on labels attached to 31 primary and 495 secondary type-specimens are presented. Some notes on the Werner Bokermann's biography, who designated 70% of the Fulcidacini types housed in the MZSP collection, are included.Uma lista atualizada dos tipos das 57 espécies de Fulcidacini (Cryptocephalinae, Chrysomelidae) depositados na coleção do Museu de Zoologia da Universidade de São Paulo é fornecida. Os dados dos rótulos apensos aos exemplares de 31 tipos primários e 495 secundários são apresentados. Algumas informações sobre a biografia de Werner Bokermann, responsável pela designação de 70% dos tipos de Fulcidacini depositados na coleção do MZSP, são disponibilizadas

    Lista dos tipos da tribo Fulcidacini (Coleoptera, Chrysomelidae, Cryptocephalinae) depositados no Museu de Zoologia da Universidade de São Paulo

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    An updated list of the types of 57 species of Fulcidacini (Chrysomelidae, Cryptocephalinae) deposited in the collection of the Museu de Zoologia da Universidade de São Paulo (MZSP) is provided. The data on labels attached to 31 primary and 495 secondary type-specimens are presented. Some notes on the Werner Bokermann's biography, who designated 70% of the Fulcidacini types housed in the MZSP collection, are included.Uma lista atualizada dos tipos das 57 espécies de Fulcidacini (Cryptocephalinae, Chrysomelidae) depositados na coleção do Museu de Zoologia da Universidade de São Paulo é fornecida. Os dados dos rótulos apensos aos exemplares de 31 tipos primários e 495 secundários são apresentados. Algumas informações sobre a biografia de Werner Bokermann, responsável pela designação de 70% dos tipos de Fulcidacini depositados na coleção do MZSP, são disponibilizadas

    Illustrated catalogue of type specimens of Megalopodidae (Coleoptera) deposited at the Museu de Zoologia da Universidade de São Paulo

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    The Museu de Zoologia da Universidade de São Paulo (MZUSP) houses an important Megalopodidae collection representing 144 species, especially from Brazil and the Neotropical fauna. The type specimens of some species have never been accessed since their original descriptions, and are thus unknown to a major part of the Megalopodidae researchers. Presented here is an illustrated catalogue of the megalopodid type specimens of 32 species deposited at MZUSP, featuring photos of habitus and labels, and complete label data of all the specimens, which originally belonged to Jacintho Guérin’s personal collection. Conflicting and inconsistent data provided in the literature and in the specimens’ labels are addressed. Taxa originally proposed as species varieties are here reaffirmed as valid, with subspecific rank. Agathomerus varians Monrós, 1945 and Plesioagathomerus vittatus Monrós, 1945, originally described as junior synonyms, are considered unavailable names. The subspecific epithet ngriapex is emended into Agathomerus bifasciatus nigrapex Guérin, 1949. An overview of the MZUSP Megalopodidae collection is presented with a history of the arrival of Guérin’s specimens

    List of types of Erotylidae (Insecta, Coleoptera) of the Museu de Zoologia, Universidade de São Paulo, Brazil

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    A list of 228 types of 79 species of erotylids (Insecta, Coleoptera, Erotylidae - including the Languriinae) of the collection of the Museu de Zoologia da Universidade de São Paulo and the data on their labels are presented.Uma lista de 228 tipos de 79 espécies de erotilídeos (Insecta, Coleoptera, Erotylidae - incluindo os Languriinae) da coleção do Museu de Zoologia da Universidade de São Paulo e os dados em seus rótulos são apresentados.(CAPES) Coordination for the Improvement of Higher Education Personne

    Characterization and Quantification of Compounds in the Hydroalcoholic Extract of the Leaves from Terminalia catappa

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    Terminalia is a genus of Combretaceous plants widely distributed in tropical and subtropical regions. Thus, the aim of this study was to quantify the majority compounds of the hydroalcoholic extract (7 : 3, v/v) of the leaves from T. catappa by HPLC-PDA, chemically characterize by hyphenated techniques (HPLC-ESI-IT-MSn) and NMR, and evaluate its mutagenic activity by the Salmonella/microsome assay on S. typhimurium strains TA98, TA97a, TA100, and TA102. The quantification of analytes was performed using an external calibration standard. Punicalagin is the most abundant polyphenol found in the leaves. The presence of this compound as a mixture of anomers was confirmed using HPLC-PDA and 1H and 13C NMR. Mutagenic activity was observed in strains TA100 and TA97a. As the extract is a complex mixture of punicalagin, its derivatives, and several other compounds, the observed mutagenicity may be explained in part by possible synergistic interaction between the compounds present in the extract. These studies show that mutagenic activity of T. catappa in the Ames test can only be observed when measured at high concentrations. However, considering the mutagenic effects observed for T. catappa, this plant should be used cautiously for medicinal purposes

    Cytogenetic analysis of Astylus antis (Perty, 1830) (Coleoptera, Melyridae): Karyotype, heterochromatin and location of ribosomal genes

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    Cytogenetic analysis of Astylus antis using mitotic and meiotic cells was performed to characterize the haploid and diploid numbers, sex determination system, chromosome morphology, constitutive heterochromatin distribution pattern and chromosomes carrying nucleolus organizer regions (NORs). Analysis of spermatogonial metaphase cells revealed the diploid number 2n = 18, with mostly metacentric chromosomes. Metaphase I cells exhibited 2n = 8II+Xyp and a parachute configuration of the sex chromosomes. Spermatogonial metaphase cells submitted to C-banding showed the presence of small dots of constitutive heterochromatin in the centromeric regions of nearly all the autosomes and on the short arm of the X chromosome (Xp), as well as an additional band on one of the arms of pair 1. Mitotic cells submitted to double staining with base-specific fluorochromes (DAPI-CMA3 ) revealed no regions rich in A+T or G+C sequences. Analysis of spermatogonial mitotic cells after sequential Giemsa/AgNO 3 staining did not reveal any specific mark on the chromosomes. Meiotic metaphase I cells stained with silver nitrate revealed a strong impregnation associated to the sex chromosomes, and in situ hybridization with an 18S rDNA probe showed ribosomal cistrons in an autosomal bivalent
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