9 research outputs found

    Fig. 1 in The First Record of Brumoides foudrasii (Mulsant) (Coleoptera: Coccinellidae: Chilocorini) from South America, with Notes on Its Biology

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    Fig. 1. Brumoides foudrasii, male, dorsal habitus.Published as part of <i>Giorgi, José Adriano, Lima, Maurício Silva & Vandenberg, Natalia J., 2014, The First Record of Brumoides foudrasii (Mulsant) (Coleoptera: Coccinellidae: Chilocorini) from South America, with Notes on Its Biology, pp. 336-338 in The Coleopterists Bulletin 68 (2)</i> on page 337, DOI: 10.1649/0010-065x-68.2.336, <a href="http://zenodo.org/record/10101793">http://zenodo.org/record/10101793</a&gt

    Registro de Pachymerus nucleorum (Fabricius) (Coleoptera, Chrysomelidae, Bruchinae) predando sementes de Licuri em Caetés, Pernambuco, Brasil

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    O objetivo deste trabalho foi registrar a predação de sementes de Syagrus coronata (Martius) (Arecaceae) por larvas de Pachymerus nucleorum (Fabricius), no município de Caetés, Pernambuco nordeste do Brasil. Os frutos foram coletadas de 10 plantas adultas de Syagrus coronata (Arecaceae) no entorno da usina experimental de biodiesel de Caetés-PE, após a definição de um raio de 1,5m ao redor da copa, esta foi dividida em quatro quadrantes, e através de sorteio, foi colocado um coletor no quadrante vencedor a 1m da estipe. Na análise os frutos com orifício de saída e/ou pela presença da larva no processo de liberação da amêndoa, o nível de infestação alcançou 80% dos frutos analisados.Em outra situação amêndoas aparentemente sadias, ou seja, sem danos superficiais foram observadas diariamente por 60 dias as quais, ocorreram 18% de emergência de larvas até os 41dias, atingindo o pico da predação entre o décimo e o décimo oitavo dia, com 48% de toda predação. Record of Pachymerus nucleorum (Fabricius) (Coleoptera, Chrysomelidae, Bruchinae) preying seeds of Licuri in Caetés, Pernambuco, Brazil. Abstract. The aim of the present study was to observe seed predation by larvae of Pachymerus nucleorum (Fabricius) on seeds of Syagrus coronata (Martius) (Arecaceae) in Caetés, Pernambuco, northeastern Brazil. Fruits of 10 adult plants of S. coronata were collected in the surroundings of the experimental biodiesel plant of Caetés. The projection of the crown within 1,5m from the stipe was devided into four quadrants, one of which was randomly selected for sampling. In the first analysis of the larvae presence or their holes of emergence, the infestation level reached 80% of the analyzed fruits. In an another situation, apparently uninfested fruits (without superficial damage) were daily observed for 60 days, occurring 18% of larvae emergence within 41 days, with the peak of predation between the tenth and the eighteenth day, period in which 48% of total predation was observed

    The evolution of food preferences in Coccinellidae

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    Despite the familiarity and economic significance of Coccinellidae, the family has thus far escaped analysis by rigorous phylogenetic methods. As a result, the internal classification remains unstable and there is no framework with which to interpret evolutionary events within the family. Coccinellids exhibit a wide range of preferred food types spanning kingdoms, and trophic levels. To provide an evolutionary perspective on coccinellid feeding preferences, we performed a phylogenetic analysis of 62 taxa based on the ribosomal nuclear genes 18S and 28S. The entire dataset consists of 3957 aligned nucleotide sites, 787 of which are parsimony informative. Bayesian and parsimony analyses were performed. Host preferences were mapped onto the Bayesian tree to infer food preference transitions. Our results indicate that the ancestral feeding condition for Coccinellidae is coccidophagy. From the ancestral condition, there have been at least three transitions to aphidophagy and one transition to leaf-eating phytophagy. A second transition to leaf-eating phytophagy arose within an aphidophagous/pollinivorous clade. The mycophagous condition in Halyziini originated from aphidophagy. Our findings suggest that polyphagy served as an evolutionary stepping stone for primarily predaceous groups to adopt new feeding habits. The analyses recovered a clade comprising Serangiini plus Microweiseini as the sister group to the rest of Coccinellidae. The subfamilies Coccinellinae and Epilachninae are monophyletic; however, Sticholotidinae, Chilocorinae, Scymninae, and Coccidulinae are paraphyletic. Our results do not support the traditional view of phylogenetic relationships among the coccinellid subfamilies. These results indicate that the current classification system poorly reflects the evolution of Coccinellidae and therefore requires revision

    Registro de Pachymerus nucleorum (Fabricius) (Coleoptera, Chrysomelidae, Bruchinae) Predando Sementes de Licuri em Caetés, Pernambuco, Brasil

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    The aim of the present study was to observe seed predation by larvae of Pachymerus nucleorum (Fabricius) on seeds of Syagrus coronata (Martius) (Arecaceae) in Caetés, Pernambuco, northeastern Brazil. Fruits of 10 adult plants of S. coronata were collected in the surroundings of the experimental biodiesel plant of Caetés. The projection of the crown within 1.5 m from the stipe was devided into four quadrants, one of which was randomly selected for sampling. In the first analysis of the larvae presence or their holes of emergence, the infestation level reached 80% of the analyzed fruits. In an another situation, apparently uninfested fruits (without superficial damage) were daily observed for 60 days, occurring 18% of larvae emergence within 41 days, with the peak of predation between the tenth and the eighteenth day, period in which 48% of total predation was observed.O objetivo deste trabalho foi registrar a predação de sementes de Syagrus coronata (Martius) (Arecaceae) por larvas de Pachymerus nucleorum (Fabricius), no município de Caetés, Pernambuco nordeste do Brasil. Os frutos foram coletadas de 10 plantas adultas de Syagrus coronata (Arecaceae) no entorno da usina experimental de biodiesel de Caetés-PE, após a definição de um raio de 1,5 m ao redor da copa, esta foi dividida em quatro quadrantes, e através de sorteio, foi colocado um coletor no quadrante vencedor a 1m da estipe. Na análise os frutos com orifício de saída e/ou pela presença da larva no processo de liberação da amêndoa, o nível de infestação alcançou 80% dos frutos analisados. Em outra situação amêndoas aparentemente sadias, ou seja, sem danos superficiais foram observadas diariamente por 60 dias as quais, ocorreram 18% de emergência de larvas até os 41dias, atingindo o pico da predação entre o décimo e o décimo oitavo dia, com 48% de toda predação

    Núcleos de Ensino da Unesp: artigos 2009

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