162 research outputs found

    Annotated checklist and illustrated key to braconid parasitoids (Hymenoptera, Braconidae) of economically important fruit flies (Diptera, Tephritidae) in Brazil

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    The braconid parasitoids of fruit-infesting flies have been more intensively studied from the middle to late 1990s, when taxonomic research was restarted in Brazil. At the same time, efforts toward the biological control of fruit flies intensified, and an exotic species, Diachasmimorpha longicaudata, was introduced. In the decade 2010, another exotic species, Fopius arisanus, was introduced, and two new species of Doryctobracon were described. Currently, 12 species of braconids from the subfamilies Alysiinae (two species) and Opiinae (10 species) are associated with fruit flies of economic importance in Brazil, two of which are introduced species. More than half of the species belong to the genus Doryctobracon, with D. areolatus (Szépligeti) the most widely distributed species in Brazil.Fil: Fidelis Marinho, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Catamarca. Universidad Nacional de Catamarca. Centro de Investigaciones y Transferencia de Catamarca; ArgentinaFil: Costa, Valmir A.. Universidade Estadual de Campinas; BrasilFil: Zucchi, Roberto A.. Universidade do Sao Paulo. Escola Superior de Agricultura Luiz de Queiroz; Brasi

    New records of two species of Toxotrypana (Diptera: Tephritidae) in Argentina

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    En este estudio se dan a conocer nuevos registros y se extiende la distribución geográfica de Toxotrypana australis Blanchard y T. nigra Blanchard en la Argentina.In this study are disclosed new records that extend the geographical distribution of Toxotrypana australis Blanchard and T. nigra Blanchard, in Argentina.Fil: Bertolaccini, Isabel. Universidad Nacional del LitoralFil: Castro, Damian. Universidad Nacional del LitoralFil: Curis, María Cecilia. Universidad Nacional del LitoralFil: Zucchi, Roberto A.. Escola Superior de Agricultura Luiz de Queiroz (Sao Paulo, Brasil). Departamento de Entomologia e Acarologi

    Parasitoids (Hymenoptera: Braconidae) of fruit flies (Diptera: Tephritidae) in the State of São Paulo, Brazil: associated plants and parasitism

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    Foram coletados 3.008 braconídeos em larvas/pupas de moscas-das-frutas em 26 espécies de frutos, distribuídos em 33 municípios paulistas. A maioria dos braconídeos pertencia a Opiinae (96,2%), representada por quatro espécies - Doryctobracon areolatus (Szépligeti), Doryctobracon brasiliensis (Szépligeti), Opius bellus (Gahan) e Utetes anastrephae (Viereck) - e os demais a Alysiinae (3,8%), representada apenas por Asobara anastrephae (Muesebeck). Doryctobracon areolatus foi atraída por mais frutos hospedeiros de moscas-das-frutas (26) e ocorreu na maioria dos municípios amostrados, totalizando 77,5% dos parasitóides coletados. Doryctobracon areolatus foi associada com Anastrepha fraterculus (Wied.), A. obliqua (Macquart), A. amita Zucchi e, pela primeira vez, em frutos de wampi (Clausena lansium) e em canela-batalha (Cryptocarya aschersoniana). Doryctobracon brasiliensis foi associada apenas com A. fraterculus e registrada, pela primeira vez, em larvas em ameixa-japonesa (Prunus salicina). Não foi possível associar as demais espécies de parasitóides às espécies de moscas-das-frutas. Opius bellus foi obtida de larvas em canela-batalha. A percentagem de parasitismo natural variou de <1% a 40%.A total of 3,008 braconid parasitoids in 26 species of fruit fly host plants were collected in 33 localities of São Paulo State. The majority of the braconids (96.2%) belonged to four Opiinae species, Doryctobracon areolatus (Szépligeti), Doryctobracon brasiliensis (Szépligeti), Opius bellus (Gahan) and Utetes anastrephae (Viereck), and the remaining 3.8%, a single species of Alysiinae, Asobara anastrephae (Muesebeck). Doryctobracon areolatus was collected on Anastrepha fraterculus (Wied), A. obliqua (Macquart) and A. amita Zucchi, and was found associated with the largest number of fruit fly host plant species (26), being recorded for the first time in fruits of Clausena lansium and Cryptocarya aschersoniana. This species was the most common, occurring in most of the sampled localities, totaling 77.5% of all parasitoids collected. Doryctobracon brasiliensis was associated only with A. fraterculus and recorded, for the first time, in Japanese plum (Prunus salicina). It was not possible to associate the remaining braconids to the fruit fly species. Opius bellus was also reared from larvae in C. aschersoniana. The natural parasitism percentage ranged from < 1% to 40%

    First record of Anastrepha pseudanomala Norrbom (Diptera: Tephritidae) and its host in Brazil

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    Anastrepha pseudanomala Norrbom was reared in fruits of Couma utilis (Apocynaceae), and also collected in McPhail traps in Ferreira Gomes county, State of Amapá, Brazil.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

    A new species of Doryctobracon Enderlein (Hymenoptera, Braconidae) parasitizing larvae of Anastrepha Schiner (Diptera, Tephritidae), with illustrated key to species of Doryctobracon that parasitize fruit-infesting tephritids in Brazil

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    Doryctobracon maculatus Marinho, a new species of Braconidae (Opiinae) collected in the municipalities of Piracicaba and São Roque, state of São Paulo, Brazil, is described and illustrated. This new species is placed in group of species with areolate propodeum, but is easily distinguished from other species of this group, and other members of the genus by the noticeable black to dark-brown spots on the head, mesosoma and metasoma. This new species was reared in larvae of Anastrepha pseudoparallela (Diptera, Tephritidae) in passion fruits, Passiflora alata Curtis (Passifloraceae). An illustrated key to species of Doryctobracon recorded in Brazil is presented.Fil: Fidelis Marinho, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Catamarca. Universidad Nacional de Catamarca. Centro de Investigaciones y Transferencia de Catamarca; ArgentinaFil: Souza Filho, Miguel F. de. Centro Avançado de Pesquisa em Proteção de Plantas e Saúde Animal; BrasilFil: Raga, Adalton. Centro Avançado de Pesquisa em Proteção de Plantas e Saúde Animal; BrasilFil: S. Santos, Wyratan da. Instituto Federal de Educação, Ciência e Tecnologia do Tocantins; BrasilFil: Zucchi, Roberto A.. Universidade de Sao Paulo; Brasi

    Host Plant Record for the Fruit Flies, Anastrepha fumipennis and A. nascimentoi (Diptera, Tephritidae)

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    The first host plant record for Anastrepha fumipennis Lima (Diptera: Tephritidae) in Geissospermum laeve (Vell.) Baill (Apocynaceae) and for A. nascimentoi Zucchi found in Cathedra bahiensis Sleumer (Olacaceae) was determined in a host plant survey of fruit flies undertaken at the “Reserva Natural da Companhia Vale do Rio Doce”. This reserve is located in an Atlantic Rain Forest remnant area, in Linhares county, state of Espírito Santo, Brazil. The phylogenetic relationships of Anastrepha species and their hosts are discussed. The occurrence of these fruit fly species in relation to the distribution range of their host plants is also discussed

    Nuevos registros de dos especies de Toxotrypana (Diptera: Tephritidae) en la Argentina

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    In this study are disclosed new records that extend the geographical distribution of Toxotrypana australis Blanchard and T. nigra Blanchard, in Argentina.En este estudio se dan a conocer nuevos registros y se extiende la distribución geográfica de Toxotrypana australis Blanchard y T. nigra Blanchard en la Argentina

    Temporal overlap and co-occurrence in a guild of sub-tropical tephritid fruit flies

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    Studies of community assembly have emphasized snapshot comparisons of spatially replicated samples from natural assemblages. Agro-ecosystems are characterized by relatively little habitat heterogeneity and no dispersal barriers for actively flying insects. Therefore, dynamic patterns of species segregation and aggregation are more likely to reflect the direct or indirect effects of species interactions. We studied the temporal organization of a guild of 21 congeneric species of Anastrepha that colonized fruit orchards in Monte Alegre do Sul, São Paulo, Brazil. This assemblage also included the introduced Mediterranean fruit fly Ceratitis capitata. One hundred six consecutive weekly censuses (11 Jan 2002-16 Jan 2004) of flies in guava, loquat, and peach orchards revealed a pattern of minimum abundance during the coldest months of each year (June and July) and a maximum abundance during periods of flowering and fruit ripening. Overall, phenological overlap was greater than expected by chance. However, conditioned on the pattern of seasonal abundances, temporal occurrence and abundance matrices exhibited patterns of significant species segregation and anti-nestedness. In each year, the 3 orchards contained a small number of species pairs that exhibited statistically significant temporal segregation or aggregation. Most aggregated and segregated pairs reflected seasonal shifts in species presences that were not related to variation in air temperature. Most of the significant pairwise associations involved C. capitata: 8 of the 11 segregated pairs and 2 of the 7 aggregated pairs. These results suggest that species interactions between introduced and native species can be an important determinant of species associations in agro-ecosystems

    The TBX3 gene, mutated in Ulnar-Mammary syndrome, promotes growth of mammary epithelial cells independently of ARF and p53.

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