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Search Results: 1 - 10 of 2272 matches for " Cristiano Feldens;Grazia "
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O gênero Chinavia Orian (Hemiptera, Pentatomidae, Pentatominae) no Brasil, com chave pictórica para os adultos
Schwertner, Cristiano Feldens;Grazia, Jocélia;
Revista Brasileira de Entomologia , 2007, DOI: 10.1590/S0085-56262007000400005
Abstract: chinavia orian is one of the most speciose pentatominae genera and is distributed in the afrotropical, nearctic and neotropical regions. in brazil, 32 species are recordered, from which 18 are endemic; host-plant association from 18 species are known, and immatures or some life history traits for six species were already described. in this work, we provided a diagnosis and discuss data available on immatures and biology of all species of chinavia found in brazil, including a pictorial key to adult identification. two new synonyms are recognized: acrosternum (chinavia) bellum rolston, 1983 is a junior synonym of chinavia nigrodorsata (breddin, 1903), and acrosternum (chinavia) panizzii frey-da-silva & grazia, 2001 is a junior synonym of chinavia obstinata (st?l, 1860). chinavia nigritarsis (st?l, 1872), formerly a synonym of chinavia gravis (walker, 1867), is reinstated. color habitus ilustrations of all species are provided, the majority taken from type-material. new host-plant associations and distribution data to chinavia species in brazil are presented.
Endemism analysis of Neotropical Pentatomidae (Hemiptera, Heteroptera)
Ferrari, Augusto;Paladini, Andressa;Schwertner, Cristiano Feldens;Grazia, Jocelia;
Iheringia. Série Zoologia , 2010, DOI: 10.1590/S0073-47212010000400018
Abstract: the definition of areas of endemism is central to studies of historical biogeography, and their interrelationships are fundamental questions. consistent hypotheses for the evolution of pentatomidae in the neotropical region depend on the accuracy of the units employed in the analyses, which in the case of studies of historical biogeography, may be areas of endemism. in this study, the distribution patterns of 222 species, belonging to 14 pentatomidae (hemiptera) genera, predominantly neotropical, were studied with the analysis of endemicity (ndm) to identify possible areas of endemism and to correlate them to previously delimited areas. the search by areas of endemism was carried out using grid-cell units of 2.5° and 5° latitude-longitude. the analysis based on groupings of grid-cells of 2.5° of latitude-longitude allowed the identification of 51 areas of endemism, the consensus of these areas resulted in four clusters of grid-cells. the second analysis, with grid-cells units of 5° latitude-longitude, resulted in 109 areas of endemism. the flexible consensus employed resulted in 17 areas of endemism. the analyses were sensitive to the identification of areas of endemism in different scales in the atlantic forest. the amazonian region was identified as a single area in the area of consensus, and its southeastern portion shares elements with the chacoan and paraná subregions. the distribution data of the taxa studied, with different units of analysis, did not allow the identification of individual areas of endemism for the cerrado and caatinga. the areas of endemism identified here should be seen as primary biogeographic hypotheses.
Review of Thoreyella Spinola with the description of two new species from Brazil (Heteroptera, Pentatomidae)
Bernardes, Jorge Luiz Cabeleira;Schwertner, Cristiano Feldens;Grazia, Jocélia;
Revista Brasileira de Entomologia , 2011, DOI: 10.1590/S0085-56262011005000037
Abstract: review of thoreyella spinola with the description of two new species from brazil (heteroptera, pentatomidae). thoreyella spinola is revised, with detailed descriptions of the four known species (t. brasiliensis spinola, 1850, t. trinotata berg, 1878, t. cornuta berg, 1883 and, t. taurus jensen-haarup, 1931), and two new species from brazil: t. maracaja sp. nov. (minas gerais, santa catarina, and rio grande do sul states) and t. paraiba sp. nov. (paraíba state). new geographical country and state/ province records are as follows: t. cornuta from rio grande do sul; t. brasiliensis from mato grosso, espírito santo, catamarca, and córdoba; and t. trinotata from brazil (rio grande do sul). a key to all species is given.
Revis?o do gênero Mecocephala Dallas, 1851 (Heteroptera, Pentatomidae)
Schwertner, Cristiano Feldens;Grazia, Jocélia;Fernandes, José Ant?nio Marin;
Revista Brasileira de Entomologia , 2002, DOI: 10.1590/S0085-56262002000200009
Abstract: revision of the genus mecocephala dallas, 1851 (heteroptera, pentatomidae). the genus mecocephala dallas, 1851 is revised, and some taxonomic and geographical distribution data are evaluated. the following species are considered to belong to this genus: m. acuminata dallas, 1851 = m. holmbergi pirán, 1969 syn. nov., m. curculionoides pirán, 1959, m. bonariensis sp. nov., m. magna sp. nov., m. maldonadensis sp. nov., and m. zikani sp. nov.; their distribution is restricted to southern neotropical region. other species, formerly placed in mecocephala, are considered, respectively: m. rubripes berg, 1894 incertae sedis, m. darwini kirkaldy, 1909 incertae sedis, m. atra bergroth, 1914 incertae sedis, paramecocephala uruguayensis (pirán, 1970) comb. nov., paramecocephala fusca (haglund, 1868) comb. nov. a key to the species is presented.
Diversity of Pentatomoidea (Hemiptera) in riparian forests of southern Brazil: taller forests, more bugs
Mendon?a, Jr., Milton de S.;Schwertner, Cristiano Feldens;Grazia, Jocélia;
Revista Brasileira de Entomologia , 2009, DOI: 10.1590/S0085-56262009000100026
Abstract: riparian forests are important features of any ecosystem, especially on grassland and savannah vegetation types. however, riparian forests in southernmost brazil have received much less attention than elsewhere. this is the first quantitative study of pentatomoid (hemiptera) diversity in the pampa biome, surveying riparian forests of brooks and rivers in the environs of the municipality of bagé, rio grande do sul state, southern brazil. the aim was two-fold: taxonomic characterization of the fauna and a primary ecological study of bug diversity. sweeping net and beating tray were used to sample trees and shrubs on the border of sampling sites; sampling was carried out during three consecutive days, from march 28th to 30th 2006. overall 154 individuals of 32 species of pentatomoidea were captured, almost all species are new records for the local fauna. taller forest canopy sites had higher abundance overall and higher species richness than shorter forest canopy sites. of the 32 species, 11 were singletons and four were doubletons. there were no differences for pentatomoid species composition between the two environments differing in vegetation structure. association to the pampa biome of the most abundant species found are discussed. although based on a rapid assessment protocol of faunal inventories, our results add important bioecological information to the pentatomoid fauna of the pampa biome, especially associated to riparian forests.
Pentatomidade (Hemiptera: Heteroptera) of the Pampa biome: Serra do Sudeste and Parque de Espinilho da Barra do Quaraí, Rio Grande do Sul, Brazil
Bunde, Paulo Roberto Sousa;Grazia, Jocélia;Mendon?a Junior, Milton de Souza;Schwertner, Cristiano Feldens;Silva, Eduardo José Ely e;Garcia, élen Nunes;
Biota Neotropica , 2010, DOI: 10.1590/S1676-06032010000300008
Abstract: a list of the pentatomidae species of the pampa biome, state of rio grande do sul, brazil is provided. the list is based on surveys carried out in the serra do sudeste, cangu?u and ca?apava counties, and in parque de espinilho da barra do quaraí during 2003-2004; these areas were never collected in rio grande do sul state before. sweeping net and beating tray were used to sample herb layer, and trees and shrubs, respectively. fifty one species of pentatomidae were registered, distributed in five subfamilies (asopinae, cyrtocorinae, discocephalinae, edessinae and pentatominae) and 27 genera. the pentatominae subfamily had the largest number of species (32 spp.). all the registered localities represent new records to the local fauna, and host plants were identified for nine pentatomid species.
Descri??o de seis espécies de Chinavia (Hemiptera, Pentatomidae, Pentatominae) da América do Sul
Schwertner, Cristiano F.;Grazia, Jocélia;
Iheringia. Série Zoologia , 2006, DOI: 10.1590/S0073-47212006000200015
Abstract: six new species of chinavia orian, 1965 are described: chinavia vanduzeei sp. nov., from peru (madre dios) and brazil (pará); chinavia schuhi sp. nov., from peru (loreto), colombia (bolívar) and brazil (amazonas); chinavia sebastiaoi sp. nov., from brazil (mato grosso do sul), bolivia (la paz and santa cruz) and paraguai (carumbé); chinavia cearensis sp. nov., chinavia tuiucauna sp. nov., and chinavia rufitibia sp. nov., from brazil (ceará, bahia and paraná, respectively). diagnoses to each species are given.
Descri??o dos estágios imaturos de Chinavia erythrocnemis (Berg) (Hemiptera: Pentatomidae)
Matesco, Viviana C.;Schwertner, Cristiano F.;Grazia, Jocélia;
Neotropical Entomology , 2006, DOI: 10.1590/S1519-566X2006000400009
Abstract: adults and nymphs of chinavia erythrocnemis (berg) were colected on sebastiania commersoniana (baill.) smith & downs in the parque estadual do espinilho in barra do quaraí county, rs, and used to establish a laboratory culture reared on green pods of phaseolus vulgaris l. egg coloration is light-brown, chorion is reticulated and aero-micropylar processes are clubbed and white; mean number of aero-micropylar processes is 61. eggs are very similar to those from other neotropical chinavia species, but the average number of 12 eggs/mass is unique among chinavia species. nymphs are predominantly black, with the distal part of the head, femur, and the basal part of tibia, red. first instar has the dorsal maculae of the head and thorax in red coloration, and the abdomen with a series of 3+3 dorsal white maculae. second to fifth instars have 1+1 white maculae on lateral margins of pronotum and 2+2 white maculae on abdome. fourth and fifth instars show an ovate white maculae in the middle of lateral plates of abdomen. nymph coloration and the size, number and position of the maculae on pronotum and abdomen are diagnostic to c. erythrocnemis.
Morphology of the immatures and biology of Chinavia longicorialis (Breddin) (Hemiptera: Pentatomidae)
Matesco, Viviana C;Schwertner, Cristiano F;Grazia, Jocelia;
Neotropical Entomology , 2009, DOI: 10.1590/S1519-566X2009000100007
Abstract: chinavia longicorialis (breddin) is recorded only in brazil, argentina and uruguay on host plants of at least three different families. adults and nymphs were reared under standard controlled conditions (24 ± 1°c; 70 ± 10% rh; 12hl:12hd), and fed on green beans (phaseolus vulgaris l.). eggs and first instars of c. longicorialis are very similar to those of other species of chinavia; however, the presence of orange maculae at the thoracic pleura is exclusive of first instars of c. longicorialis. third to fifth instars have abdominal maculae divided by pseudo-sutures, a diagnostic feature of c. longicorialis nymphs. light and dark morphs were observed for third, fourth and fifth instars. head width measurements did not overlap between consecutive instars. the most frequent size of an egg clutch was 14; we suggest the adoption of the mode as the best and useful estimate of the egg clutch size for pentatomidae. average duration of the immature stages (egg to adult) was 39.4 ± 3.20 days. the high mortality observed from second to fifth instar (82.4%) and the lack of reproduction of the second generation indicate that green beans are unsuitable to proper development and reproduction of c. longicorialis by itself.
Descri??o dos Estágios Imaturos de Acrosternum (Chinavia) ubicum Rolston (Heteroptera: Pentatomidae) e Efeito do Alimento no Tamanho e Colora??o das Ninfas
Neotropical Entomology , 2002, DOI: 10.1590/S1519-566X2002000400009
Abstract: here we describe the immature stages of acrosternum (chinavia) ubicum rolston, and test the effect of the host plant on the size and coloration of the nymphs, by feeding them with developing fruits of crotalaria incana l., phaseolus vulgaris l., glycine max (l.) merril, abelmoschus esculentus (l.), and lycopersicon esculentum mill. a. ubicum immatures are very similar to those from other neotropical acrosternum species. the egg coloration varies from ochre to brown; the chorion is reticulated and the micropylar processes are clubbed and white. first to third instars are predominantly dark and the abdomen has a series of creamy to white maculae. second to fifth instars show red to orange-red maculae on each of the dorso-lateral margins of the pronotum and mesonotum. in the fourth and fifth instars, these maculae are wider, and may also appear on the margins of the jugae, on the pronotum and mesonotum, and in the middle of the mesal and lateral plates of the abdomen. the orange-red coloration of these dorsal maculae seems specific to a. ubicum, but additional studies with other species of the genus are necessary to validate it as a good diagnostic characteristic. fourth and fifth instars presented light and dark morphs, and their proportion varied according to the type of plant used as food. from the third instar on, the food also affected most of the morphometric parameters measured, i.e., length and width of the body, pronotum and scutelum, and antennal length; only the rostrum length remained unchanged.
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