Navegando por Assunto "Taxonomia animal"

Agora exibindo 1 - 20 de 23

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Análise cladística e descrição de um novo gênero de Edessinae (Hemiptera, Heteroptera e Pentatomidae)
(Universidade Federal do Pará, 2016-04-06) NUNES, Benedito Mendes; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245
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Análise cladística e revisão do subgênero nominal de Edessa (Heteroptera: Pentatomidae: Edessinae)
(Universidade Federal do Pará, 2017-01-23) SILVA, Valéria Juliete da; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245
Pentatomidae is the fourth numerous and diverse family of Heteroptera. From Pentatomidae, Edessinae has more than 300 described species. Edessinae is a Neotropical subfamily with nine genera: Edessa Fabricius, 1803, Brachystethus Laporte, 1832, Ascra Say, 1832, Peromatus Amyot & Serville, 1843, Olbia Stål, 1862, Pantochlora Stål, 1870, Doesburgedessa Fernandes, 2010, Paraedessa Silva & Fernandes, 2013 and Grammedessa Correia & Fernandes, 2016, genera with well-defined diagnoses except Edessa which is considered a deposit of species to the subfamily. Edessa has the greatest taxonomical and nomenclatural problems of Edessinae, because it historically has a great confusion with the limits of the genus and subfamily. To solve the problem was proposed the review of Edessa from groups of species and subgenera. Edessa is composed by five subgenera: Aceratodes Amyot & Serville, 1843, Dorypleura Amyot & Serville, 1843, Pygoda Amyot & Serville, 1843, Hypoxys Amyot & Serville, 1843and the nominal subgenus. Among subgenera only the nominal was not reviewed. As Edessa (Edessa) is an “empty taxa”, composed only by the type specie, it were used the characters of the groups of species by Stål (1872) as start point to the delimitation of this subgenus. During the bibliography research was found a mistake in the typification of Edessa, so here the type specie was changed from E. cervus (Fabricius, 1787) to E. antilope (Fabricius, 1798). To recognize and limit Edessa and to create relationship hypothesis among the species was realized a cladistics analysis. It were included the species considered by Stål (loc. cit.) as part of the Edessa group of species, as well as species that possess the characters mentioned by Stål as diagnosis to this group. The data matrix is composed for 111 morphological characters and 85 taxa, 13 of outgroup and 72 of ingroup. For the analysis were realized two weighting schemes: equal and implicit weight of characters with K varying from 3–12, and two types of search: traditional and new technologies. The cladogram with K=8 and traditional search have 763 steps, IC: 19 and IR: 60. Based on this cladogram the subgenus Edessa is composed by 10 species known for the science: E. antilope, E. cervus, E. taurina Stål, 1862, E. ibex Breddin, 1903, E. arabs (Linnaues, 1758), E. cylindricornis Stål, 1872, E. rondoniensis Fernandes & van Doesburg, 2000, E. burmeisteri Fernandes & van Doesburg, 2000, E. cerastes Breddin, 1905 and E. elaphus Breddin, 1905, and six new morphotypes: E. sp. nov. “near flavinernis”, E. sp. nov. “close flavinernis”, E. sp. nov. “near 112”, E. sp. nov. “close 112”, E. sp. nov. “40” and E. sp. nov. “131”. The subgenus Edessa is diagnosed by the mainly green color on dorsal surface; humeral angles at least twice longer than large, black apex of humeral angle posteriorly curved, whole or bifid; embolium contrasting in color to the corium; corium with at least one yellow vein; dorsal rim of pygophore narrow and continuous with the base of posterolateral angles. Also the cladistics analysis suggests the monophyly of Edessinae and polyphyly of Edessa in its current composition. Changes in taxonomical status to genera of Aceratodes, Dorypleura, Pygoda and Hypoxys are corroborated. Peromatus appears with an internal branch in the analysis; it reinforces the necessity to review the genus. Also were recognized and described 13 new group of species to Edessa. Were redescribed species known to the science and described new species to the genus. Nomenclatural problems have been identified, with 11 synonyms proposed and a revalidation of taxon previously in synonymy; lectotypes were designated and a key of identification of species is given.
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Aspectos ecoepidemiológico associados à fauna flebotomínica de um fragmento florestal urbano
(Universidade Federal do Pará, 2017-03-31) ROSÁRIO, Ingrid Nazaré Garcia; MÁLAGA, Sérgio Marcelo Rodríguez; http://lattes.cnpq.br/4348571126707708; SILVA, Ivoneide Maria da; http://lattes.cnpq.br/5206284058104362
Sand flies are insects vectors of several disease-causing pathogens, responsible for the transmission to animals and humans of numerous diseases, the main being leishmaniasis. The present study evaluated the ecoepidemiological aspects of the phlebotominal fauna in a forest fragment in the urban area of Belém (PA). From December 2015 to November 2016, monthly collections of sand flies were carried out in the forest fragment and in the peridomicile of nearby residences, with the aid of a CDC type light trap. A total of 4070 phlebotomines were collected, with identification of two genera and 24 species. The predominant species was Lutzomyia (Trichopygomyia) longispina (32.16%), followed by Lutzomyia (Evandromyia) infraspinosa (21.72%). The wealth estimators indicated that the sampling effort was satifastory for the studied area. There was no significant relationship between accumulated precipitation, temperature and relative humidity when analyzed with sandfly abundance. When related to climatic variables with species richness, only the accumulated monthly rainfall presented a negative relation on the richness of captured species. In the analysis of the vertical distribution the number of sandfly specimens captured at ground level was significantly higher than in the canopy, where 21 species were found in the soil, four of them exclusive to this stratum and 20 species in the canopy, with three occurring exclusively in the canopy. Four species with epidemiological importance were found: Lutzomyia (Nyssomyia) flaviscutellata, Lutzomyia (Psychodopygus) ayrozai, Lutzomyia (Psychodopygus) paraensis and Lutzomyia (Nyssomyia) antunesi. The females evaluated by PCR were negative for Leishmania spp. And most of the engorged females analyzed were fed on mammals. The knowledge of the fauna in an area of preservation under intense anthropic influence, can help in the understanding of the relation between the species and the degree of preservation of an area, and also in the knowledge of species that may play an effective role in the transmission of pathogens to man and animals.
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Caracterização morfológica de Liophis reginae semilineatus (Wagler, 1824) e Liophis reginae macrosomus (Amaral, 1935), e o status taxonômico de Liophis oligolepis Boulenger, 1905
(Universidade Federal do Pará, 2002-10-25) COSTA, Robson Gil Neris; PRUDENTE, Ana Lúcia da Costa; http://lattes.cnpq.br/1008924786363328
The Brazilian subspecies of Liophis reginae (Liophis reginae macrosomus and Liophis reginae semilineatus) were analyzed, in order to characterize the two taxa and to verify the validity of Liophis oligolepis, considered a synonym of Liophis regime semilineatus. External morphology, cranial osteology and hemipenis were examined. Based on a MANOVA, significant sexual differences in head and body variables were identified. A discriminant analysis function (DAF) was performed for males and females separately, in order to maximize in a multivariate space the differences between the three previously defined taxa: Liophis reginae semilineatus, Liophis reginae macrosomus, and Liophis oligolepis. The first discriminant component in males separated clearly Liophis reginae semilineatus and Liophis oligolepis, while Liophis reginae semilineatus and Liophis reginae macrosomus separated at the second discriminant component. In females, the first disctiminant component separated Liophis oligolepis from Liophis reginae semilineatus and Liophis reginae macrosomus. When both sexes were analysed together, for the pairs of taxa Liophis oligolepis - Liophis reginae semilineatus, and Liophis reginae semilineatus - Liophis reginae macrosomus, both pairs were separated by the first discriminant component. Since some specimens of Liophis reginae semilineatus and Liophis reginae macrosomus were registered beyond their previous known distribution, a DAF was applied to verify if these specimens grouped within their presumed taxa or geographically. The first possibility occurred, supporting the validity of each taxon and raising the question of their taxonomic status. The hemipenian morphology does not differ between Liophis reginae semilineatus, Liophis reginae oligolepis and Liophis reginae macrosomus. The three taxa present similar skulls, although differences were observed between the parietal bones of Liophis reginae semilineatus and Liophis reginae oligolepts. The validity of Liophis oligolepis was corroborated, based on meristic, morphometric and morphological characters. Future studies will be necessary to test the Liophis reginae semilineatus and Liophis reginae macrosomus status.
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A comunidade de tubarões (Chondrichthyes : selachii : Galea) da formação pirabas, Neógeno da Amazônia Oriental
(Universidade Federal do Pará, 2005-03-10) COSTA, Sue Anne Regina Ferreira da; RICHTER, Martha; http://lattes.cnpq.br/9381228195500524; TOLEDO, Peter Mann de; http://lattes.cnpq.br/3990234183124986
The shark community (Selachii:Galea) from the Pirabas Formation in one of the most representative of the Neogene in South America due to its high diversity of taxa and range of ecological components. The presence of eight known genera enabled to establish hypothesis about the trophic chain of the vertebrate palaeocommunity, as well as to corroborate previous reconstructions about the paleoenvironmental parameters of this geologic unit. This study dealt with the taxonomic revision of the shark community on both generic and species leveis, allowing the following composition: Carcharhinus spl, Carcharhinus sp2, Carcharhinus sp3, Carcharhinus priscus, Sphyrna magna, Hemipristis serra, Carcharodon megalodon, Isurus sp, Ginglymostoma serra, Ginglymostoma obliquum. The analyses of newly collected specimens and microscopic material allowed a considerable expansion of identified individuals up to 231 teeth. This work is a contribution to refine the knowledge about the regional patterns of shark paleobiogeography.
Acesso aberto (Open Access)
Descrição de dez espécies novas do gênero Neoxyphinus Birabén, 1953 da América Hispânica (Araneae, Oonopidae)
(Universidade Federal do Pará, 2015) MOSS, Daniella Franzóia; BONALDO, Alexandre Bragio; http://lattes.cnpq.br/8721994758453503; RUIZ, Gustavo Rodrigo Sanches; http://lattes.cnpq.br/3135887179267009
Acesso aberto (Open Access)
Descrição e notas taxonômicas comparativas das terminálias femininas de espécies de Peckia robineaudesvoidy, 1830 (Diptera, Sarcophagidae) da Amazônia brasileira
(Universidade Federal do Pará, 2014-04-03) CAMARGO, Sofia Lins Leal Xavier de; CARVALHO FILHO, Fernando da Silva; http://lattes.cnpq.br/7987049452090800; ESPOSITO, Maria Cristina; http://lattes.cnpq.br/2112497575917273
Description and comparative morphological notes of female terminalia of species of Peckia Robienau-Desvoidy, 1830 (Diptera, Sarcophagidae) from the Brazilian Amazon. In order to contribute and allow specific identification of female of the genus Peckia, the terminalia of 15 species that occurs in Brasilian Amazon are described, illustrated and an identification key to females is given. Besides gena color and the presence of setulae in gena and calypter, the shape of spermathecae and tergite 6 can also be used in the subgenus determination. The sternites 6, 7 and 8, the position of spiracle 6 and the microtrichosity of tergite 6 reveled important to specific identification. The tergite 8 is present only in the species Peckia (Pattonella) intermutans (Walker, 1861). The shape of vaginal plate, a structure present only in four species of subgenus Peckia, differs in shape and can be used to characterize these species. Therefore, a combined analysis of these features of female terminalia is necessary in the species determinationof the females of Peckia. Peckia (Peckia) hilifera (Aldrich, 1916) is recorded for the first time from Brazil.
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Filogenia e história biogeográfica do grupo Callicebus moloch (Primates, Pitheciidae)
(Universidade Federal do Pará, 2015-01-29) CARNEIRO, Jeferson Costa; SILVA JÚNIOR, José de Sousa e; http://lattes.cnpq.br/4998536658557008; SCHNEIDER, Horacio; http://lattes.cnpq.br/3621033429800270
Callicebus is a genus of Neotropical primate of the family Pitheciidae. Thirty-two species are currently recognized. They are classified in two subgenera, Torquatus and Callicebus, and five species groups: C. torquatus, C. moloch, C. cupreus, C. donacophilus and C. personatus. The arrangement of subgenera and groups is based on morphology and geographic distributions. The first section, we is introduction to the taxonomy of Callicebus. In the second section, I present an article for submission to the jounrla Primates concerning the chapter presence or absence of a molecular region known as an Alu element. An Alu element is a transposon in the genome of primates Because of this particular characteristic of Alu insertion, I discovered that the C. moloch and C. cupreus groups are closely related and that C. torquatus is the basal group in the genus. In the third section , from a multilocus approach I investigated the phylogenetic relationships of the C. moloch group and the time of diversification between the species, in order to test the hypothesis of formation of the Amazon River basin during the Plio-Pleistocene. Our results support the hypothesis of origin of Amazonian rivers in the last 3 Ma. However, not all diversification events in Callicebus can be explained by the theory of rivers. the results also indicate that the different species groups are derived from a radiation in the Amazonian region at different times during the upper Miocene. The phylogenetic analysis identified a number of potentioal taxa that a number of taxa which the current knowledge of species diversity in Callicebus is underestimated, and that recently diversified species are taxonomically neglected.
Acesso aberto (Open Access)
A ictiologia na Amazônia brasileira de Diogo Nunes (1538) a Landi (1772): a visão dos viajantes e naturalistas que trataram de sua ictiofauna durante este período
(Universidade Federal do Pará, 2003) PEREIRA, Rodolfo Fernando Moraes; PAPAVERO, Nelson; http://lattes.cnpq.br/8603988130191881
This paper aimed at gathering and making available information on the Amazonian ichthyfauna according to several writings of the 16th to the 17th century. Documental sources from many libraries and archives were consulted, and the species mentioned in the selected documents were taxonomically identified. Also, observations based on available textual and iconographical references were made so as to add zoologically relevant information. It was realized that, due to the then prevailing definition of the concept of "fish", a study of ichthyology in that period must include also data on species belonging to taxa other than lampreys, hagfishes, elasmobranchs and teleosts. At the beginning ot the colonial period, the concept of fish was simply generalized as meaning fishery resources, and there was no much interest in drafting checklists of the New World fish fauna. Later, some of the incoming visitors. set themselves to describe and illustrate the fish fauna more specifically: in this phase when fish species were described in fuller detail, three works are outstanding: the text attributed to Fr. Cristóvão de Lisboa (1625-1631), the codex by Antonio Giuseppe Landi (1772) and especially the manuscript by Fr. João Daniel (1758-1776) who was found to be a pioneer of conservationism in Amazonia. Overall, the visitors who carne to the region lacked a specific academie background and, as they served to various tasks other than Science, they did not follow a methodology that could be called scientific. Because their manuscripts were not made public or even printed, for several reasons, the knowledge they produced was not cumulative, let alone analytical, and had no significant influence on the development of Ichthyology. On the other hand, naturalists who in fact did not come to Amasonia could make a stronger contribution, by consolidating the knowledge obtained from mainly the work of Georg Marcgrave (1648) and from specimens collected in Dutch colonies in South America, and by including it in a great classification system that would later rekindle the interest of other scientists in studying the Amazonian fish fauna.
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A morfologia de Stenocercus dumerilii Steindachner (1867) (Squamata, Iguanidae) e suas implicações filogenéticas
(Universidade Federal do Pará, 2004-05-18) HERNÁNDEZ RUZ, Emil José; ÁVILA-PIRES, Teresa Cristina Sauer de; http://lattes.cnpq.br/1339618330655263
The objetive of this study was to include the lizard Stenocercus dumerilii (Steindachner, 1867) in the phylogenetic context of Tropidurinae*. Scale morphology, cranial anatomy, scapular girdle, abdominal skeleton, and hemipenis are described. Emphasis is given to characters used in phylogenetic studies including the genus Stenocercus. Sixty-five preserved specimens, two cleared and stained specimens, and two distended hemipenis have been examined. The characteristics studied agree with the generic placement of the species, considering its present definition. On the other hand, the species is unique within the genus Stenocercus by having only one pair of xiphisternal ribs, a depressed tail, postsupraciliar scales projected in the form of a horn (together with S. tricristatus), and enlarged parietal, postparietal and occipital scales forming a longitudinal sequence. Contrary to what has been generally considered, this species does not agree with the characteristics o f the informal "Ophryoessoides group". The main characteristics of S. dumerilii that exclude it from this species group are the arrangement of supraoculars and posterior head scales, and the distance between the pairs of post-xiphisternal ribs. It is concluded that S. dumerilii fits well within Tropidurinae* and the genus Stenocercus, but it is not part of the "Ophryoessoides group".
Acesso aberto (Open Access)
A new miniature of Xenurobryconini (Characiformes: Characidae) from the rio Tapajós basin, Brazil
(Universidade Federal do Pará, 2016) MENDONÇA, Marina Barreira; PEIXOTO, Luiz Antônio Wanderley; DUTRA, Guilherme Moreira; NETTO-FERREIRA, André Luiz
A new species of Xenurobrycon isdescribed from tributaries of the rio Tapajós, Pará, Brazil. It is diagnosed from all congeners by the dark color of the posterior half of both caudal-fin lobes, the presence of infraorbitals one, two, and three, the presence of a set of lamellar processes on eighth principal caudal-fin ray of mature males, the presence of bony hooks similar in size or decreasing posteriorly on last unbranched and first 9-12 branched anal-fin rays of mature males, the presence of only conical teeth on both jaws, the lack of the adipose fin and the presence of 15-18 predorsal scales. The description of the new species increases the number of species in Xenurobrycon to six. An updated key to the species of the genus is provided.
Acesso aberto (Open Access)
A new species of Scinax Wagler, 1830 (Anura: Hylidae) from the middle Amazon river basin, Brazil
(2014) STURARO, Marcelo José; DEL PELOSO, Pedro Luiz Vieira
A new species of the hylid genus Scinax is described and illustrated. The new taxon was found in the Amazonian rainforest of northern Brazil, municipalities of Maués and Careiro da Várzea, state of Amazonas. The new species is characterized by its moderate size (male mean snout-vent length 36.3mm); body robust; large, orange, black-bordered axillary and inguinal spots; and bilobate vocal sac. This new species was found in primary and secondary forest on branches of shrubs or trees in, or next to, permanent ponds and flooded areas.
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Novas espécies do gênero Neoxyphinus birabén 1953 (Araneae: Oonopidae) do Brasil
(Universidade Federal do Pará, 2016-02-28) FEITOSA, Níthomas Mateus das Neves; RUIZ, Gustavo Rodrigo Sanches; http://lattes.cnpq.br/3135887179267009; BONALDO, Alexandre Bragio; http://lattes.cnpq.br/8721994758453503
Twenty-seven new species of the genus Neoxyphinus are described, all from Brazil, are described, rising the total number of species of the genus to 48. The new species with the respective geographic distribution and known sexes are: N. capiranga sp. nov. (♂♀) from Amazonas, Pará, Mato Grosso and Rondônia; N. caprichoso sp. nov. (♂♀) and N. garantido sp. nov. (♂♀) from Amazonas and Pará; N. crasto sp. nov. (♂♀) from Bahia and Sergipe; N. murici sp. nov. (♂♀ from Alagoas and Sergipe; N. meurei sp. nov. (♀) from Bahia and Mato Grosso; N. belterra sp. nov. (♂♀) from Pará and Mato Grosso; N. ornithogoblin sp. nov. (♂♀), N. sax sp. nov. (♂♀), N. coari sp. nov. (♂♀), N. tucuma sp. nov. (♂♀), N. ducke sp. nov. (♂) and N. carigoblin sp. nov. (♀) from Amazonas; N. almerim sp. nov. (♂), N. mutum sp. nov. (♂♀), N. caxiuana sp. nov. (♂♀), N. cachimbo sp. nov. (♂) and N. jacareacanga sp. nov. (♀) from Pará; N. paraty sp. nov. (♂♀) and N. rio sp. nov. (♂♀) from Rio de Janeiro; N. novalima sp. nov. (♂♀) and N. celluliticus sp. nov. (♂) from Minas Gerais; N. paraiba sp. nov. (♂) and N. simsinho sp. nov. (♂♀) from Paraíba; N. cantareira sp. nov. (♂) from São Paulo; N. cavus sp. nov. (♂) from Espírito Santo and N. stigmatus sp. nov. (♂) from Bahia. A key for identification of all 48 known species of Neoxyphinus is provided and possible monophyletic lineages within the genus are discussed.
Acesso aberto (Open Access)
Proposição de um novo gênero de Edessinae (Heteroptera, Pentatomidae)
(Universidade Federal do Pará, 2015-02-12) CORREIA, André Oliveira; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245
Edessinae have seven genera, among them Edessa is the largest with more than 250 names proposed and more than 300 species to be described. The diversity resulted in a complex taxonomical history, so Edessa is the genus with more taxonomical and nomenclatural problems in Edessinae. Review the genus in groups of species is the best proposal to organize Edessa and it already resulted in description of two new genera of Edessinae. This study selected three species described by Beddin (1905), in addition to eight new species chosen for morphological characters. A new genus to Edessinae is proposed, uniting species with four black and punctured stripes longitudinal on dorsal surface of the head; humeral angles laterally projected, slightly flattened dorso-ventrally; metasternal process with branches of bifurcation narrow, long, thin in the apex; abdominal trichobothria placed laterally, not aligned with spiracles; gonocoxites 8 and laterotergites 8 always punctured in females; gonocoxites 8 large, subequal in length to laterotergites 9; pygophore with dorsal rim with semicircular excavation, paramere posteriorly projected, genital cup superior process dark, laminar, partially fused to the cup process. Edessa pallicornis, E. bugabensis, E. rorativentris and E. stillativentris are redescribed and transferred to the new genus. E. strigiceps is proposed as junior synonym of Gen. nov. pallicornis. This study gives the first description of males of Gen. nov. bugabensis and Gen. nov. rorativentris. Extended distribution of Gen. nov. bugabensis (Costa Rica), Gen. nov. rorativentris (Brazil), Gen. nov. stillativentris (Colombia). The lectotype of Gen. nov. bugabensis is here designated. Eight new species are described to the new genus: Gen. nov. sp. n. 203a, Gen. nov. sp. n. 203e, Gen. nov. sp. n. 205, Gen. nov. sp. n. 206, Gen. nov. sp. n. 207, Gen. nov. sp. n. 207c, Gen. nov. sp. n. 297 e Gen. nov. sp. n. 297b.
Acesso aberto (Open Access)
Revisão de Aceratodes Amyot & Serville, 1843 (Heteroptera, Pentatomidae, Edessinae)
(Universidade Federal do Pará, 2013) SIQUEIRA, Emely Laiara Silva de; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245
Edessinae is one of the largest and more diverse subfamily of Pentatomidae. This is due to the large number of described (about 260) and undescribed species (about 300). Edessinae comprises today six genera: Edessa, Brachystethus, Peromatus, Olbia, Pantochlora and Doesburgedessa. Along the time, species not fitting in one of the genera remaining were automatically placed in Edessa, leading to confusion between the limits of the genus and subfamily. The large number of species resulted in concentration of the taxonomical and nomenclatural problems of the Edessinae in Edessa. Therefore, new taxonomical studies are needed to solve these problems involving Edessinae and Edessa: revising the genera of Edessinae, reviewing the status of the subgenera of Edessa, redescribing species and proposing nomenclatural changes. The main objective of this study was to review the status of Aceratodes as well as to propose some nomenclatural changes detected. Were analyzed 283 specimens belonging to 22 institutions from Brazil and other countries. For each species were provided descriptions, measures, photographs, drawings of the taxonomically significant structures (metasternal process and genitalia of both sexes), identification key and distributional maps. Aceratodes was raised to genus level based on morphological characteristics common to all species,such as: humeral angle not developed and rounded; female genital plates of female not produced posteriorly; hemelitron with embolium showing texture, color and punctures pattern different from the remaining corium; arms of the metasternal process laterally flat and not reaching anterior third of mesosternum. Aceratodes now is composed by 19 species. A new species from Atlantic Forest; two originally described in this genus: A. albomarginatus and A. marginalis; and 16 transferred from Edessa: E. abdominalis, E. aulacosterna, E. brasiliensis, E. carnosa, E. castaneolineta, E. cerradensis, E. chapadensis, E. fulvicornis, E. luteovenulata, E. meditabunda, E. mexicana, E. ovalis, E. piperitia, E. rufodorsata and E. rufomarginata and E. sternalis. The female of A. meditabundus is here described for the first time. The lectotype of Edessa mexicana is here designated. The species Edessa corallipes, E. cogitabunda and E. virididorsata were considered junior synonyms of A. carnosus, A. meditabundus and A. fulvicornis respectively.
Acesso aberto (Open Access)
Revisão taxonômica de Liophis typhlus (Linnaeus, 1758) (Serpentes: Colubridae)
(Universidade Federal do Pará, 2007) SILVA, Márcio André Amorim da; PRUDENTE, Ana Lúcia da Costa; http://lattes.cnpq.br/1008924786363328
The Liophis typhlus (Linnaeus, 1758) it is a species of restricted distribution to the South America, being recognized three subspecies: Liophis typhlus typhlus found in the tropical forests throughout the Amazonian basin in the following countries: Equador, Bolivia, Colombia, Peru the East of Andes, North and East of Venezuela, Guianas and Brazil; Liophis typhlus brachyurus gift in Forest Atlantic of the southeastern Brazilian, Cerrados Center-west Brazilian, and in Paraguay; and Liophis typhlus elaeoides gift in the basin of the River Paraguay, including the Chacos of southeastern of Bolivia, North of Paraguay, and Center-west of Brazil. With the objective to taxonomic revise of Liophis typhlus 16 morphometrics and 19 meristics characters of 240 specimens had been analyzed. The skull and hemipenis they had been analyzed of comparative form between taxa. Sexual differences had been identified significant, using test t. Analyses of Discriminante Function had been carried through enter studied specimens of taxa. The multivariate analysis of variance (MANOVA) was used between taxa, to verify significant differences between them. Significant difference between males and females, with regard to the, of the specimens of L. t elaeoides was evidenced. In L. t. typhlus had been evidenced significant differences with regard to six characters (CT, CCA, LCA, LFR, CMA and VE). The results of the analyses of the Discriminante Function had indicated a clear distinction between three taxa studied. The coloration pattern, the skull and hemipenis they had been important in diagnose of the species. The distribution of L. typhlus, seems to be restricted to the Amazonian, having its south limit in the north of Mato-Grosso next to the area to Amazonian-Cerrado transistion. L. brachyurus more is associated the Cerrado, however it occurs in areas of Forest Atlantic, Caatinga and Pantanal. L. elaeoides possesss an area of more restricted distribution to the Chaco and Pantanal, however its distribution was extended, with analysis of two units originating the Rio Grande do Sul. It was not possible to verify the phylogenetic relationships between species L. brachyurus, L. elaeoides and L. typhlus with the too much species of the genera.
Acesso aberto (Open Access)
Revisão taxonômica de Tometes Valenciennes, 1850 (Characiformes: Serrasalmidae) das drenagens do Escudo das Guianas
(Universidade Federal do Pará, 2013-02-21) ANDRADE, Marcelo Costa; JÉGU, Michel Louis Arthur Marie Ange François; http://lattes.cnpq.br/1270768412397418; GIARRIZZO, Tommaso; http://lattes.cnpq.br/5889416127858884
The genus Tometes Valenciennes, 1850 was originally described for the typespecies T. trilobatus, by presenting incisiform and bi- tricuspid teeth. However, the genus was synonymized with Myleus Müller and Troschell, 1844 for approximately a century and a half until being revalidated with an addition of two new species descriptions, T. lebaili and T. makue. This study presents a taxonomic review of Tometes from Guyana Shield where the three nominal species are recognized as valid and here were re-described, also a new species from Trombetas basin was described, increasing the diversity and distribution of genus. Among the main characteristics of diagnosis were observed: T. trilobatus is distinguishes from its congeners by having dentary and premaxillary teeth with the central cusp with rounded edge (vs. teeth with the central cusp or principal cusp with sharp edge). T. lebaili differs from others Tometes by having mouth oblique dorsally directed (vs. terminal mouth). T. makue is different by having a few spines on the serrae prepelvic, always between 0 and 9 spines (vs. over 9 spines). Already the new species is distinguished by the neurocranium with a slight concavity at the level of the epiphyseal bar, and also by having scales of irregular size (vs. dorsal profile of the neurocranium without a slight concavity, and scales of regular size). All species of Tometes are strictly rheophilic, and occur exclusively in the rapids of shield rivers, complex and fragile biotopes that are threatened by anthropogenic activities. The conclusions reached by this study highlight the urgent challenge to understand more fully existing species/habitat relationships.
Acesso aberto (Open Access)
Revisão taxonômica do complexo Micrurus spixii Wagler, 1824 (Serpentes, Elapidae)
(Universidade Federal do Pará, 2016-03-31) NASCIMENTO, Lywouty Reymond de Souza; PRUDENTE, Ana Lúcia da Costa; http://lattes.cnpq.br/1008924786363328
Acesso aberto (Open Access)
Revisão taxonômica do gênero neotropical X.eropigo Pickard-Cambridge (Araneae, Corinnidae, Corinninae)
(Universidade Federal do Pará, 2005) SOUZA, Danni Roberto Santos de; BONALDO, Alexandre Bragio; http://lattes.cnpq.br/8721994758453503
The genus Xeropigo O. Pickard-Cambridge, 1882 is revised, with the proposition of seven neotropical new species. X. candango, based in males and females from Brasília, Distrito Federal and Goiás, Brazil; X. rheimsae, based in males from Goiás, Brazil; X. camilae, in males and females from north and middle west of Brazil; X. cotijuba, in males and females from floral and middle west of Brazil; X. pachitea, based in males and females from Huánuco and Cajamarca, Peru; X. perene, in females from Junin and Loreto, Peru; X. brescoviti, in males from Bení, Bolivia. The previously known species, X. tridentiger (O. Pickard-Cambridge, 1869), type-species, described from Santa Helena Island, Atlantic Ocean, but also known from South and Central Americas, and X. smedigaari (Caporiacco, 1955) from North Venezuela and Trinidad, are readgnosed. New records and illustrations of X. tridentiger are given.
Acesso aberto (Open Access)
Revisão taxonômica do grupo de espécies de Mischocyttarus (Omega) filiformis (de Saussure, 1854) (Hymenoptera: Vespidae, Polistinae)
(Universidade Federal do Pará, 2017-01-31) BORGES, Rafael Cabral; SILVEIRA, Orlando Tobias; http://lattes.cnpq.br/9654506257169791
Mischocyttarus de Saussure is the only genus in the Mischocyttarini tribe. This tribe is composed by approximately 250 species, being this genus the largest among the Polistinae. M. filiformis (de Saussure) is the type species in the subgenus Omega, and was described based only in the type specimen from Pará state (Brazil). Three related species, posteriorly described, compose the M. filiformis species-group: M. buyssoni (Ducke), M. napoensis Richards e M. omicron Richards. This work aimed to perform a taxonomic revision of the Mischocyttarus filiformis species group based on the analisis of external morphology traits from the type specimens of the previously described species, and in additional specimens from collections in Brazil and in other countries. Four species were redescribed in this study, M. filiformis, M. buyssoni, M. napoensis e M. omicron, and six new species were described, Mischocyttarus sp. nov 1, Mischocyttarus sp. nov 2, Mischocyttarus sp. nov 3, Mischocyttarus sp. nov 4, Mischocyttarus sp. nov 5, Mischocyttarus sp. nov 6, thus increasing to 10 the number of species in this species-group. The geographic distributional records of the species M. filiformis, M. buyssoni e M. omicron is here extended. The male of M. filiformis is described. The nests of M. filiformis, M. buyssoni, Mischocyttarus sp. nov 3, Mischocyttarus sp. nov 4, Mischocyttarus sp. nov 5 are described and additional information about the paralectotypes of M. buyssoni deposited in the MPEG collection is provided.