Navegando por Assunto "Mosca"

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Acesso aberto (Open Access)
A fauna de califorídeos e sarcofagídeos (Insecta, Diptera) das matas e clareiras com diferentes coberturas vegetais da base de extração petrolífera, Bacia do Rio Urucu, Coari, Amazonas
(Universidade Federal do Pará, 2008-07-21) SOUSA, José Roberto Pereira de; ESPOSITO, Maria Cristina; http://lattes.cnpq.br/2112497575917273
This research was done at the oil extraction field of Urucu River in Coari, Amazonas, during the months of April, June and October of 2007, in 16 areas, 12 of them forest clearings and four forests, arranged in four environments (C1,C2,C3 and MT) according to type of forest cover. The objective was to study the composition, abundance, wealth, and diversity of Calliphoridae e Sarcophagidae (Insecta, Diptera) and also assess the possibility of these taxons to be used as parameters for evaluation of the condition of vegetal recuperation in clearing areas. The number of calliphorid collected were 7.215 (three subfamilies, eight genera and 16 species), being Chloroprocta idioidea (Robineau-Desvoidy,1830) (88,06%) and Paralucilia adespota Dear,1985 (4,35%) the most abundant species. The patterns of calliphorid abundance did not differ among the environments, however the e distinctive in relation to the estimated richness and diversity, forming two groups (C1-C2) and (C3-MT). The ordination analysis (non-metric multidimensional scaling) showed that the environment differed among themselves, as well as a greater similarity between C1-C2 and C3-MT, in relation to the structure of calliphorid communities. From the Sarcophagidae family 3.547 species were collected, distributed in 10 genera, six subgenera and 23 species , being Sarcodexia lambens (Wiedemann,1830) (47,05%) and Peckia (Peckia) chrysostoma (Wiedemann,1830) (19,11%), the most abundant species. The patterns of abundance, estimated richness and diversity for this family differed among environments and separated them into two groups, one from the clearings (C1,C2 and C3) and the other from the forest (MT). The ordination analysis (non-metric multidimensional scaling) showed a separation between sarcophagid fauna from clearings and those from the forests. The canopy cover influenced the pattern of abundance of Eumesembrinella randa Sarcophagidae family, only the abundance of Peckia (Pattonella) intermutans species (Walker,1861) was greater on environments with higher rates of forest canopy. The abundance of Oxysarcodexia amorosa (Schiner,1868), O. fringidea (Curran & Walley,1934), O. thornax (Walker,1849), P. (P.) chrysostoma and S. lambens species presented a negative linear relation with the forest canopy. These results indicate the possibility for use of these patterns as parameters to assess change in the vegetation structure.
Acesso aberto (Open Access)
Revisão taxonômica e filogenia das espécies do gênero Nephochaetopteryx Townsend, 1934 (Diptera: Sarcophagidae)
(Universidade Federal do Pará, 2012-08-20) CARVALHO FILHO, Fernando da Silva; MELLO-PATIU, Cátia Antunes de; http://lattes.cnpq.br/6111953763967066; ESPOSITO, Maria Cristina; http://lattes.cnpq.br/2112497575917273
Nephochaetopteryx Townsend, 1934 is a genus of flies of the family Sarcophagidae, tribe Sarothromyiini, predominately Neotropical, with only one Nearctic species. This genus comprises small species (4–7.3 mm), mainly characterized by vein R1 fully setose dorsally, males with proclinate orbital bristles, and male mid femur with ctenidium. In addition, some species has wing fumose between apical part of vein R2+3 and C. The taxonomic review of the genus resulted in 34 valid species, being seven new species to science. Nephochaetopteryx calida does not belong to the genus, N. shannoni is junior synonymy of N. flavipalpis, and N. linharensis a junior synonymy of N. pallidifacies. A key to males of all described species (except for N. juquiana) is showed, as well as detailed illustrations of terminalia and sternite 5 of males. In addition, it is proposed a hypothesis of the phylogenetic relationships to the genus, based on 24 external morphological characters of adult males, mainly from terminalia. Were utilized 32 terminal taxa, being 29 of Nephochaetopteryx. The monophyly of genus is corroborated, and a new synapomorphy is proposed within the Sarothromyiini context: sternite 5 of male with median lobule. Based on the phylogenetic analyses, the genus is divided in four species group: angustifrons, biculcita, cyaneiventris and pallidiventris. The angustifrons group is the sister group of the clade that comprises the remaining species.