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The Parque Estadual da Serra do Papagaio is the largest area of natural preservation in the south of Minas Gerais, with areas of Floresta Atlantica, Floresta de Araucaria and Campos de Altitude. Although this is an area of biological importance, there are many groups that have not yet been studied there: for example social wasps, which are insects belonging to order Hymenoptera, family Vespidae, which play an important ecological role in different ecosystems. This study was carried out in the aforementioned natural preservation area at altitudes between 1600 and 2200 m in 20 days of sampling between July of 2013 and April of 2014, using active searches and attractive traps to record species. Twenty two species of social wasps were sampled, distributed in seven genera. This number is small compared to counts from other studies in this state, which is probably due to the high altitude of this area. There was a predominance of nests with protective casings in the most common species recorded, and the most populous species was Polybia fastidiosuscula Saussure, a finding that can be explained by the superior thermoregulation afforded by the nest casing. Two other common species were Mischocyttarus drewseni Saussure, and Mischocyttarus rotundicolis (Cameron), which have nests without casings; however, these species have dark coloration, as does the substrate used for nesting, and can therefore enhance retention of solar radiation; nevertheless, other biotic and abiotic factors could be involved. Biodiversidade de Vespas Sociais (Hymenoptera: Vespidae) em Areas de Altitude Acima de 1600 Metros do Parque Estadual da Serra do Papagaio, Estado de Minas Gerais, Brasil Resumo. O Parque Estadual da Serra do Papagaio e a maior Unidade de Conservacao do sul de Minas Gerais, com areas de Mata Atlântica, floresta de Araucaria e Campos de Altitude. Apesar da importância biologica da area, muitos grupos animais nao foram estudados, como as vespas sociais, insetos que pertencem a ordem Hymenoptera, familia Vespidae, e que desempenham importante papel ecologico em diferentes ecossistemas. O estudo foi conduzido nessa Unidade de Conservacao em altitudes entre 1600 a 2200 m, no periodo de julho de 2013 a abril de 2014, durante vinte dias de amostragem, utilizando busca ativa e armadilhas atrativas para registro das especies. Foram amostradas 22 especies de vespas sociais distribuidas em sete generos. Numero menor em relacao a outros estudos do estado, o que, provavelmente, foi ocasionado pela elevada altitude. Houve uma predominância de ninhos com involucro protetor e a especie mais frequente foi Polybia fastidiosuscula Saussure, o que pode ser explicado pela melhor regulacao termica obtida pelo involucro. Outras duas especies frequentes foram Mischocyttarus drewseni Saussure e Mischocyttarus rotundicolis (Cameron) que possuem ninhos sem involucro, porem essas especies possuem coloracao escura, assim como o substrato utilizado para nidificacao e isso poderia reter melhor a radiacao solar. Contudo outros fatores bioticos e abioticos podem estar envolvidos.

entomobrasilis

Biodiversity of Social Wasps (Hymenoptera: Vespidae) at Altitudes Above 1600 Meters in the Parque Estadual da Serra do Papagaio, State of Minas Gerais, Brazil