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Registros recuperados: 28
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A new species of Microglanis (Siluriformes: Pseudopimelodidae) from the Pacific slope of Ecuador Neotropical Ichthyology
Tobes,Ibon; Falconí-López,Ana; Valdiviezo-Rivera,Jonathan; Provenzano-Rizzi,Francisco.
ABSTRACT A new species of catfish is described from the Esmeraldas River Basin, Pacific slope, northern Ecuador. Tentatively included in Microglanis, represents the second species of the genus inhabiting the Trans-Andean region. The new species is distinguished from known congeners by a unique combination of external characteristics: head and body color pattern, uniform, pale brown, yellowish or grayish, without any kind of blotches, bands or dots, only a lunate transverse band, dark or black, at caudal-fin origin; adipose-fin origin and forward without lighter or luminous areas. Compared with M. variegatus, the new species has morphometric differences, such as the distances between dorsal and pelvic fins, and between posterior nostrils. Some osteological...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diversity; Richness; Systematic; Taxonomy; Trans-Andean region.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000200211
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A new species of whiptail armored catfish, genus Pseudohemiodon (Siluriformes: Loricariidae) from the Orinoco River basin, Llanos region of Colombia and Venezuela Neotropical Ichthyology
Rojas-Molina,Yecid Andrey; Provenzano-Rizzi,Francisco; Ramírez-Gil,Hernando.
ABSTRACT A new species of whiptail armored catfish belonging to the genus Pseudohemiodon is described. The new species inhabits aquatic systems of the Orinoco River basin, mostly in the Llanos region of Colombia and Venezuela. Previously, it had identified as P. laticeps erroneously. The genus Pseudohemiodon includes seven known species inhabit Amazon and Paraná-Paraguay-Uruguay rivers basins. The new species is distinguished from congeners by the combination of the following characters: abdomen totally covered; area in front of gill opening without plates, ventrally; dorsal body color pattern without transversal dark bands, mostly in the caudal peduncle; head with straight sides; head and caudal peduncle narrower.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diversity; Freshwater fishes; South America; Systematic; Taxonomy.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000200213
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A phylogenetic analysis of Brycon and Henochilus (Characiformes, Characidae, Bryconinae) based on the mitochondrial gene 16S rRNA Genet. Mol. Biol.
Hilsdorf,Silva; Oliveira,Claudio; Lima,Flávio César Thadeo de; Matsumoto,Cristianne Kayoko.
The genus Brycon, the largest subunit of the Bryconinae, has 42 valid species distributed from southern Mexico to the La Plata River in Argentina. Henochilus is a monotypic genus, comprising a single species (H. wheatlandii) found in the upper Rio Doce basin. In the present study, partial sequences of the mitochondrial gene 16S were obtained for fifteen species of Brycon and for Henochilus wheatlandii. The results showed that the genus Brycon is paraphyletic, since Henochilus is the sister-group of B. ferox and B. insignis. The most basal species analyzed were the trans-Andean species B. henni, B. petrosus, and B. chagrensis.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phylogeny; Molecular systematics; Mitochondrial DNA; Fish evolution; Systematic.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200034
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A preliminary overview of the Brazilian Apioninae (Coleoptera: Brentidae) with an illustrated key for genera, and a checklist with distribution information Biota Neotropica
de Sousa,Wesley Oliveira; Ribeiro-Costa,Cibele Stramare; Rosado-Neto,Germano Henrique.
Abstract: Here we examine the taxonomic diversity of the Brazilian Apioninae (Coleoptera: Brentidae) and provide an update based on the literature and through examination of material in primary Brazilian collections. Ten genera and 89 species are valid and we include 30 (25 genera, 5 species) new distribution records. Chrysapion Kissinger, 1968 is first reported in Brazil, restricted to the northeast. Ranges now include the Amazon (three genera and one subgenus) and Atlantic (four genera and one subgenus) forests, the Pantanal (five genera) and Cerrado (three genera). The ranges of several genera now include more than one new biome. An identification key (including images of adults and illustrations of male genitalia) also includes the 10 Brazilian genera...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Curculionoidea; Neotropical Region; Taxonomy; Systematic.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000400208
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A remarkable new species of Phocides (Lepidoptera: Hesperiidae) from Bolivia and taxonomic considerations on Phocides charon Iheringia, Sér. Zool.
Siewert,Ricardo R.; Leviski,Gabriela L.; Mielke,Olaf H. H.; Casagrande,Mirna M..
ABSTRACT A new skipper butterfly, Phocides petroleum Siewert, Leviski, Mielke & Casagrande sp. nov. is described and illustrated from Caranavi, La Paz Department, Bolivia. The new species seems closely related to Phocides charon (C. Felder & R. Felder, 1859) but could be easily distinguished by a set of external characteristics. Lectotypes are designated for Erycides charon C. Felder & R. Felder, 1859 and Erycides scython Godman & Salvin, 1879.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Butterfly; Eudaminae; Neotropical; Systematic; Taxonomy.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212018000100223
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Additional notes on systematic of Neotropical Dissomphalus Ashmead (Hymenoptera, Bethylidae) Zoologia
Azevedo,Celso Oliveira.
Diagnosis and genitalia description and illustration of Dissomphalus bicavatusEvans, 1979;D. bispinulatusEvans, 1969;D. brasiliensisKieffer, 1910;Z). caviclypeus Evans, 1969; D. cornutus Evans 1964; D. dumosus, Evans, 1966; D. fungosus Evans, 1979; D. gilvipes Evans, 1979; D. incomptus Evans, 1964; D. infissus Evans, 1969; D. mendicus Evans, 1969; D. microstictus Evans, 1969; D. mirabilis Evans, 1966; D. nanellus Evans, 1969; D. napo Evans, 1979; D. plaumanni Evans, 1964; D. punctatus (Kieffer, 1910); D. puteolus Evans, 1969; D. rufipalpis Kieffer, 1910; D. xanthopus Ashmead, 1893 are provided. Female of D. mirabilis is first described. Five synonymies are proposed: D. connubialis Evans, 1966 of D. brasiliensis, D. montanus Kieffer, 1910 of D. punctatus,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hymenoptera; Bethylidae; Dissomphalus; Neotropical; Systematic.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000400001
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Ancylidae (Gastropoda, Basommatophora) na América do Sul: sistemática e distribuição Zoologia
Lanzer,Rosane.
The family Ancylidae is represented in South America by the genera: Gundlachia Pfeiffer, 1849, Ferrissia Walker, 1903, Burnupia Walker, 1912 and Laevapex Walker, 1903. The species are caracterized using the combination of shell features and radula by scanning electron microscope, shell muscle and mantle pigmentation. The conchometry is also presented, but it does not help to species identification. The distribution of G. crequi (Bavay, 1904), G. foncki (Philippi, 1866), G. philippiana (Biese, 1948), G. obliqua (Broderip & Sowerby, 1832), G. moricandi (Orbigny, 1837), G. concentrica (Orbigny, 1835), G. radiata (Guilding, 1828), G bakeri Pilsbry, 1913, G ticaga (Marcus & Marcus, 1962), F. gentilis Lanzer, 1991, B. ingae Lanzer, 1991, L. vazi...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ancylidae; Systematic; Distribution; South America.
Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100018
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Cruciglanis, a new genus of Pseudopimelodid catfish (Ostariophysi: Siluriformes) with description of a new species from the Colombian Pacific coast Neotropical Ichthyology
Ortega-Lara,Armando; Lehmann A.,Pablo.
Cruciglanis pacifici, gen. et sp. nov., is described from the Dagua and Anchicaya Rivers on the Pacific slope of Colombia. The new genus is differentiated from the other genera in the family by the presence of an ossified crucifix-shaped second basibranchial; ectopterygoid bone shaped as an inverted comma, with its distal end narrow and directed medially towards the mesopterygoid; anterior fontanel elongated, reaching a transverse line at sensory canal opening of the sphenotic bone; caudal fin emarginated with rounded edges and ventral lobe more developed than the dorsal lobe; caudal fin with a dark spot from its base and fused with the peduncular spot, covering the anterior three quarters of its length, distal rim totally hyaline. Coloration of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cruciglanis pacifici; Pseudopimelodidae; Taxonomy; Systematic; Neotropical; Catfishes; Dagua River; Anchicaya River; Colombia.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000200002
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Description of the last instar larva of Tachysphex inconspicuus (Kirby) (Hymenoptera, Crabronidae) from Brazil Zoologia
Buys,Sandor C..
The last instar larva of Tachysphex inconspicuus (Kirby, 1890) is described and illustrated. Minute spines on the anterior dorsal annulets of abdominal segments and different types of setae on prothorax and mesothorax are remarkable features observed in the larva of T. inconspicuus which were not reported in previously descriptions of larvae of the genus. Distribution of spines and sensilla on the epipharynx and distribution of setae on head and body seem also useful to distinguish Tachysphex larvae.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Immature; Morphology; Taxonomy; Systematic; Wasp.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000400044
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Genetic variability of Hypostomus (Teleostei, Loricariidae) from the Ribeirão Maringá, a stream of the upper Rio Paraná basin, Brazil Genet. Mol. Biol.
Paiva,Suzana de; Renesto,Erasmo; Zawadzki,Cláudio Henrique.
Hypostomus strigaticeps and two morphotypes of Hypostomus were collected from Ribeirão Maringá, a small tributary of the Rio Pirapó, an effluent of the upper Rio Paraná. The three populations were analyzed by allozyme electrophoresis that allowed the scoring of 25 loci from 14 enzyme systems. Heterozygosity values (He) were 0.028 in H. strigaticeps, 0.027 in Hypostomus sp. 1 and zero in Hypostomus sp. 2. Several diagnostic loci and fixed differences were observed for each population at loci Acp-A, Gcdh-A and Mdhp-A. Thus, all populations were genetically distinct, although there were many common alleles. The unbiased genetic identities of Nei (I) were estimated as 0.780 for Hypostomus sp. 1 and H. strigaticeps, 0.357 for H. strigaticeps and Hypostomus sp....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allozymes; Heterozygosity; Hypostomus; Loricariidae; Systematic.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000300005
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Last instar larva of Trypoxylon (Trypoxylon) maidli Richards (Hymenoptera, Crabronidae), with biological notes on one nest Zoologia
Buys,Sandor Christiano.
The last larval instar and the cocoon of Trypoxylon (Trypoxylon) maidli Richards, 1934 are described. This larva is apparently indistinguishable from that of T. clavicerum exiguum Tsuneki, 1956. They can be distinguished from larvae of other species in the subgenus by the following features: integument of body smooth, sensilla on both sensorial area and labrum, and distinct parietal bands. Notes on nesting site and preys from one nest are presented. Eurycoma insigne (Millidge, 1991) (Linyphiidae) and Argiope argentata (Fabricius, 1775) (Araneidae) are reported as preys.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biology; Immature; Prey; Systematic; Wasp.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000300013
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Lepidoptera (Insecta) associated with soybean in Argentina, Brazil, Chile and Uruguay Ciência Rural
Formentini,Aline Carraro; Sosa-Gómez,Daniel Ricardo; Paula-Moraes,Silvana Vieira de; Barros,Neiva Monteiro de; Specht,Alexandre.
ABSTRACT: The present research updates the systematic position and nomenclature of Lepidoptera associated with soybean crops in Argentina, Brazil, Chile and Uruguay. Scientific literature lists 69 species of Lepidoptera feeding on soybean plants. These species are representatives of the Superfamilies Noctuoidea (31), Pyraloidea (13), Hesperioidea (12), Tortricoidea (5), Geometroidea (5), and Bombycoidea (3). Diversity of Lepidoptera associated to crop, injury in different parts of the plant, and changes in species composition are discussed considering the changes in plant disease management, introduction of plants expressing Bt proteins, and the recent introduction of Helicoverpa armigera (Hübner) as a new crop pest.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Caterpillars; Inventory; Taxonomy; Systematic; Lepidopterous pests..
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001202113
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Metapyrophorus pharolim a new genus and species of Pyrophorini (Coleoptera, Elateridae, Agrypninae) Rev. Bras. entomol.
Rosa,Simone Policena; Costa,Cleide.
Metapyrophorus, a new monotypic genus, is erected based on M. pharolim, new species from Trinidad and Tobago and Venezuela. The genus is characterized mainly by its pair of convex pronotal bioluminescent organs, equidistant between the median line and the lateral margin.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioluminescence; Click-beetles; Neotropical Region; Systematic.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262009000100012
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New records of Parvalona parva (Crustacea: Anomopoda: Chydoridae) from Brazil, with first description of the male Rev. Bras. Zool.
Elmoor-Loureiro,Lourdes M.A.; Santos-Wisniewski,Maria J. dos; Rocha,Odete.
The Neotropical species Parvalona parva (Daday, 1905) was previously reported only from two localities (Northern Argentina and Lençóis Maranhenses, Brazil). In the present paper, seven new records of P. parva from Brazil are presented. The specimens were collected from small waterbodies located in the Federal District and the states of São Paulo, Pará, and Pernambuco. These new records suggest that this species is not as rare as previously believed. The male, sexual female, and the lateral head pores of parthenogenetic females are described and illustrated for the first time.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aloninae; Cladoceran; South America; Systematic.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200022
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New species of Moenkhausia Eigenmann, 1903 (Characiformes: Characidae) with comments on the Moenkhausia oligolepis species complex Neotropical Ichthyology
Benine,Ricardo C.; Mariguela,Tatiane C.; Oliveira,Claudio.
A new species of Moenkhausia is described from tributaries of the rio Paraguay, Brazil. The new species is diagnosed from congeners by characters related to body coloration, the number of lateral line scales, the degree of poring of the lateral line, and number of scales rows above and below the lateral line. Molecular analyses using partial sequences of the mitochondrial gene Cytochrome Oxidase I from specimens of the new species and specimens belonging to morphologically similar species demonstrated that the new species is easily differentiated by their high genetic distance and by their position in the phylogenetic hypothesis obtained through the Maximum Parsimony methodology. The analyses of three samples of M. oligolepis also revealed that they have...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Taxonomy; Systematic; Molecular Phylogeny; COI gene; Moenkhausia sanctaefilomenae.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000200005
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Nuevos aportes para la sistemática de los Glyptodontia Ameghino 1889 (Mammalia, Xenarthra, Cingulata) Ameghiniana
Fernicola,Juan Carlos.
En este trabajo se presenta una exhaustiva revisión de la sistemática de los gliptodontes, incluyendo las distintas clasificaciones e hipótesis filogenéticas propuestas desde el siglo XIX. De acuerdo a la clasificación vigente, formulada con carácter preliminar, se realizó un análisis cladístico, basado en 84 caracteres craneomandibulares, de los siguientes taxones: Glyptodontinae [Glyptodon], Doedicurinae [Doedicurus], Propalaehoplophorinae [Propalaehoplophorus y Eucinepeltus] y Hoplophorinae (=Sclerocalyptinae), Hoplophorini (=Sclerocalyptini) [Neosclerocalyptus (=Sclerocalyptus), Eosclerocalyptus y Hoplophractus] Plohophorini [Stromaphorus, Pseudoplohophorus y Plohophorus] Panochthini [Panochthus] y Lomaphorini [Urotherium]. Los resultados obtenidos...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glyptodontia; Systematic; Phylogeny; Classification; Glyptodontia; Sistemática; Filogenia; Clasificación.
Ano: 2008 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142008000300004
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Phylogeny of the Aplousobranchia (Tunicata: Ascidiacea) Zoologia
Moreno,Tatiane R.; Rocha,Rosana M..
The phylogenetic relationships of genera and families of Aplousobranchia Lahille (Tunicata, Ascidiacea) is reconstructed based on morphological characters - the first comprehensive morphology-based phylogenetic analysis for the Aplousobranchia. Monophyly of Aplousobranchia and its families were tested with samples of 14 families. The final character matrix comprised 47 characters and 41 genera as terminal taxa. Nine equally most parsimonious trees (length 161, CI = 0.5031, RI = 0.7922) were found. Characters describing replication, colony system formation, and branchial walls were the more important in phylogenetic reconstruction. These characters were more useful than others more traditionally used in ascidian taxonomy, such as: body division, position of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chordata; Classification; Morphological characters; Systematic; Urochordata.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200016
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Proposta de classificação da família Xanthidae (Crustacea, Decapoda, Brachyura) através da taxonomia numérica Zoologia
Coelho,Petrônio Alves; Coelho Filho,Petrônio Alves.
Several families were added in the past in order to constitute the Xanthidae, but the boundaries between Xanthidae, Parthenopidae and Goneplacidae were diluted, and the classification of some genera doubtful. By this reason was made the analysis of a typical genus of each subfamily occurring in Brazil. 50 characters were selected and coded as (0) for absence and (1) for presence. The data matrix was analysed by computer programs NTSYS and NMIX. The phenetic analysis shows the Xanthidae as a good family, but the cladistic one (Wagner tree) split them in four families: Carpiliidae, Xanthidae (with the subfamilies Menippinae, Platyxanthinae, Xanthinae and Eucratopsinae), Eriphiidae and Pilumnidae (with the subfamilies Trapeziinae and Pilumninae)....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachyura; Xanthidae; Systematic; Numerical taxonomy.
Ano: 1993 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751993000400001
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Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae) Anais da ABC (AABC)
Pedroso-de-Moraes,Cristiano; Souza-Leal,Thiago de; Brescansin,Rafael L.; Pettini-Benelli,Adarilda; Sajo,Maria das Graças.
Considering that the root structure of the Brazilian genera belonging to the Catasetinae subtribe is poorly known, we describe the roots of twelve representatives from this subtribe. For anatomical analysis, the roots were fixed in FAA 50, preserved in ethanol 70% and sectioned at its medium region using razor blades. The sections were stained with 0.05% astra blue and safranin and mounted in glycerin. For the identification of starch we used Lugol's solution; for lignin, floroglucin chloridric; for lipids, Sudan III, and for flavanoids, potassium hydroxide. The relevant aspects were registered using a digital camera joined with an Olympus microspope (BX51 model). The structural similarities of all roots support the placement of the subtribe Catasetinae...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Epiphytism; Morphoanatomy; Orchid; Systematic.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000200015
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Revision of the South American Fonckia (Opiliones: Gonyleptidae: Pachylinae) with the description of two new species Rev. Bras. Zool.
Silva,Marília Pessoa; Hara,Marcos Ryotaro; Pinto-da-Rocha,Ricardo.
Fonckia Roewer, 1913 is revised and two new species are described in it: Fonckia contulmo sp. nov., from Monumento Nacional Contulmo, Araucanía, Chile, diagnosed mainly by the enlarged tubercles on the lateral margins of the dorsal scutum, between the median region of scutal area II and the posterior margin of the scutal area III; and Fonckia sosia sp. nov., from Parque Nacional Conguillio, Malleco, Chile, distinguished mainly by the absence of a dorso-basal apophysis on femur IV of the male and a spiniform, enlarged retroapical tubercle on tibia IV of the male. We propose the generic synonymy of Diconospelta Canals, 1934 under Fonckia Roewer, 1913, and the specific synonymy of D. vazferreirae Mello-Leitão, 1946 under F. processigera (Sørensen, 1902). We...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chile; Harvestmen; Neotropics; Systematic; Taxonomy.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000200014
Registros recuperados: 28
Primeira ... 12 ... Última
 

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