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| Registros recuperados: 17 | |
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| Silveira,Orlando Tobias. |
| A survey of social wasps was made in the area of the "Ferreira Penna" Research Station (ECFPn) in Caxiuanã, PA, Brazil. Traditional collecting methods as the use of Malaise traps and the search for individuals and colonies of wasps along trails in the forest and by river margins, were applied in a more systematized fashion. Seventy-nine species belonging to 18 genera were discovered within a discontinuous period of 52 days of collecting. Angiopolybia pallens, Polybia liliacea, and several Agelaia species were the most frequently collected species. Active search for wasps in the forest and by river margins was far more efficient than Malaise traps regarding the discovery of polistine species. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vespidae; Polistinae; Social wasps; Survey; Caxiuanã; ECFPn. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492002001200001 |
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| Silveira,Orlando Tobias. |
| Social wasp species of Mischocyttarus (Phi) related to M. alfkenii (Ducke) and M. paraguayensis Zikán (Hymenoptera, Vespidae, Polistinae). A revision of the taxonomic status and an identification key are presented for species of the genus Mischocyttarus related to M. alfkenii (Ducke) and M. paraguayensis Zikán. Seven new species are proposed in the alfkenii and basimacula groups (M. achagua sp. nov.; M. arawak sp. nov.; M. awa sp. nov.; M. embera sp. nov.; M. muisca sp. nov.; M. uniformis sp. nov.; M. waunan sp. nov.), with five new synonymies [M. mamirauae Raw = M. alfkenii (Ducke); M. alfkenii excrucians Richards = M. flavicornis nigricornis Zikán = M. flavicornis Zikán; M. basimacula superpictus Richards = M. basimacula (Cameron)]. Specific status is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Neotropical; New species; Taxonomy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262013000200008 |
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| Silveira,Orlando Tobias. |
| ABSTRACT Taxonomic revisionary notes and identification keys are presented for two species-groups of wasps of the genus Mischocyttarus, subgenus Phi. Material of the M. wagneri and M. barbatus groups, including types, was examined in several collections, resulting in description of one new species for the first mentioned group (M. camanducaia sp. nov.), and several new synonymies for both groups as follows (senior synonym in bold): [Mischocyttarus mourei Zikán 1949 = Mischocyttarus laneiZikán 1949 = Mischocyttarus plaumanniZikán 1949]; [Mischocyttarus declaratusZikán 1935 = Mischocyttarus confirmatusZikán 1935 = Mischocyttarus brackmanniZikán 1949 = Mischocyttarus alternatusZikán 1949 = Mischocyttarus cabaunaZikán 1949]; [Mischocyttarus barbatus Richards... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Neotropical wasps; Subgenus Phi; Taxonomy; New synonymy; New species. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262019000100053 |
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| Silveira,Orlando Tobias. |
| A phylogenetic analysis is presented of subgenera and species-groups of Mischocyttarus de Saussure, the largest genus of social wasps. The analysis is based on 62 morphological and nest architecture characters, coded for 71 terminals representing much of the taxonomic diversity within the genus, plus three outgroup terminals representing other polistine tribes. The main conclusions about phylogenetic relationships within the genus are based on parsimony analysis under implied weights. Monophyly of Mischocyttarus is confirmed as well as that of most of the previously recognized subgenera: Mischocyttarus s. str., Clypeopolybia, Monogynoecus, Scytokeraia, Phi, Kappa, Megacanthopus and Omega sensu Richards (1978). Haplometrobius as conceived by Richards (1978)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Systematics; New classification; Social wasps. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262008000400004 |
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| Somavilla,Alexandre; Oliveira,Marcio Luiz de; Silveira,Orlando Tobias. |
| Diversity and aspects of the ecology of social wasps (Vespidae, Polistinae) in Central Amazonian "terra firme" forest. The knowledge of social wasp richness and biology in the Amazonian region is considered insufficient. Although the Amazonas state is the largest in the region, until now only two brief surveys were conducted there. Considering that the systematic inventory of an area is the first step towards its conservation and wise use, this study presents faunal data on social wasp diversity in a 25 km² area of "terra firme" (upland forest) at the Ducke Reserve, Manaus, Amazonas, Brazil. Wasps were collected in the understory, following a protocol of three collectors walking along 60 trails 1,000 m in extension for 16 days between August and October... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Active search; Ducke Reserve; Insecta; PPBio; Structured inventory. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262014000400008 |
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| Silveira,Orlando Tobias; Costa Neto,Salustiano Vilar da; Silveira,Odete Fátima M. da. |
| In Brazilian Amazonia, 20 genera and more than 200 species of polistine wasps are recorded. Local faunas with 70 to 80 species are usually found in non floodable forest environments. However, a variety of wetlands exist in the region, the most expressive in surface area being varzea systems. In this paper, information is presented on polistines from two areas of wetlands in the Brazilian states of Amazonas and Amapá. These are reciprocally compared and also with nearby terra firme locations. Collecting methods consisted of active search for nests, handnetting and automatic trapping of individuals. Forty-six species of 15 genera were collected in Mamirauá, AM, most being widespread common wasps. However, five species deserve special mention in virtue of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Polistine wasps; Varzea; Tidal varzea; Amazonas; Amapá. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672008000200018 |
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| Morato,Elder F.; Amarante,Sérvio Túlio; Silveira,Orlando Tobias. |
| O Parque Nacional da Serra do Divisor (PNSD), localizado a noroeste do Estado do Acre, é considerado uma das áreas de maior diversidade da Amazônia. A importância de se considerar insetos em programas de conservação tem sido muito enfatizada. Vespas solitárias e sociais são componentes muito importantes dos ecossistemas, devido à posição que ocupam nas redes alimentares. Esse trabalho teve como objetivo realizar uma avaliação ecológica rápida da fauna de vespas do PNSD, para subsidiar a elaboração de um plano de manejo do referido parque. A amostragem foi realizada em 12 sítios de coleta, situados no interior de oito tipologias de vegetação. Os insetos foram coletados através de armadilhas Malaise, as quais foram expostas em todos os sítios por 24 horas,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vespas; Hymenoptera; Acre; Diversidade; Parque Nacional da Serra do Divisor. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672008000400025 |
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| Somavilla,Alexandre; Fernandes,Itanna Oliveira; Oliveira,Marcio Luiz de; Silveira,Orlando Tobias. |
| Some neotropical vespids are known for their association with other insects and vertebrate taxa. In the present study about the wasp diversity in the Ducke Reserve, Manaus, Brazil five active colonies and an abandoned one of Polybia rejecta, and one active colony of Synoeca virginea were found associated with ant nests of Azteca aff. chartifex (Formicidae). A single colony of Polybia rejecta was found beside nests of Cacicus cela (Passeriformes: Icteridae). These associations appear to be related both to protection of the wasps nests by the ants and the protection of the ants nests by the wasps, as well as to protection of the bird nests by the wasps. The wasps take advantage of the tolerance of the ants, nesting near their colonies to obtain protection,... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Azteca ants; Cacicus cela; Nests; Polybia rejecta; Synoeca virginea. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200308 |
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| Registros recuperados: 17 | |
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