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| Registros recuperados: 27 | |
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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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 |
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| Registros recuperados: 27 | |
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