The material studied comes from eight of the several natural environments which occur in Paraná State. The samples are part of the Levantamento da Fauna Entomológica do Estado do Paraná (PROFAUPAR), developed by Centro de Identificação de Insetos Fitófagos (CIIF) of the Departamento de Zoologia da Universidade Federal do Paraná. The material was collected using light-traps installed in eight different sites of the State: Antonina (in the coastal plain), São José dos Pinhais (in the coastal mountain range), Colombo (in the first plateau), Ponta Grossa, Telêmaco Borba and Jundiaí do Sul (in the second plateau); Guarapuava and Fênix (in the third plateau). The samples were collected from August 1986 until July 1987. The amount of braconid wasps obtained was 6,081. These wasps represent 24 subfamilies and 5,653 of them were identified in 118 genera. Rogadinae, Hormiinae, Microgastrinae and Meteorinae were the most frequent subfamilies. Indices of diversity and equitability were used to discuss the richness and dominance of genera in each locality. The higher values of richness were recorded in Ponta Grossa, Fênix, Guarapuava e Antonina and the lower in Colombo. The higher diversity index was recorded in Guarapuava and the lower in Antonina, Jundiaí do Sul and Fênix. Guarapuava presented the highest equitabitily and Antonina the lower. Cluster Analysis was adopted taking as attribute the braconid genera. The results were compared with floristic conditions at the eight localities. Eight genera were reported from Brazil for the first time: Alysia Latreille (Alysiinae); Binodoxys Mackauer, Pauesia Quilis Pérez and Pseudephedrus Starý (Aphidiinae); Centistoides van Achterberg and Wesmaelia Foerster (Euphorinae); Paroligoneurus Muesebeck (Ichneutinae); Zele Curtis (Meteorinae). It was found a new genus belonging to Hormiinae and it will be described later on. These results evidence the importance and the need of taxonomic and ecological studies on the family Braconidae, especially in the Neotropical region. Statistical analyses indicated that the asymptote of actual genera richness have been approached in the majority of environments. Light-traps are very efficient for survey of the Braconidae fauna, considering the subfamilies and genera sampled, if compared to the studies made with other collection methods (basically Malaise traps, yellow pan traps and sweeping of the vegetation). Despite the studied areas be representative of different stages of vegetation recovering they have many hosts to the wasps, especially Lepidoptera and Coleoptera. We can conclude that braconid wasps are very important because they can be used as bioindicator of the forests preservation status.
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