ABSTRACT. An inventory of social wasps in Cerrado biome of the southern of the state of Minas Gerais was performed. A comparison between field and Riparian Forest areas was made in relation to species richness; correlations between diversity, sample methods and environmental factors were conducted. A total of 32 species was registered and Polybia fastidiosuscula de Saussure, 1854 was the most abundant species. The higher richness was in the Cerrado Field, as well as the highest diversity index. The temperature and rainfall had significant correlation with species richness and a significant variation in richness between dry and wet seasons was observed. Polybia fastidiosuscula was more abundant in the Riparian Forest during the dry season and in the Cerrado Field during wet season. The study area showed a great diversity of social wasps, with record both widely distributed species such as rare species, which indicates the quality and potential area for future studies.KEYWORDS. Polistinae, inventory, composition, seasonality.RESUMO. Diversidade de vespas sociais (Hymenoptera, Vespidae) no Cerrado do sul do estado de Minas Gerais, Brasil. Foi realizado um inventário de vespas sociais em área do bioma Cerrado do sul do estado de Minas Gerais. Foram comparadas uma área de campo e uma área de mata ciliar em relação à riqueza de espécies, bem como verificadas as correlações entre diversidade, métodos de amostragem e os fatores ambientais. Um total de 32 espécies foi registrado e Polybia fastidiosuscula de Saussure, 1854 foi a espécie mais abundante. A maior riqueza foi registrada na área de campo, bem como o maior índice de diversidade. A temperatura e pluviosidade apresentaram correlação significativa com a riqueza de espécies e uma variação significativa na riqueza entre as estações seca e úmida foi observada. Polybia fastidiosuscula foi mais abundante na mata ciliar durante a estação seca e na área de campo na estação úmida. A área de estudo apresentou uma grande diversidade de vespas sociais, registrando tanto espécies amplamente distribuídas como espécies raras, o que indica a qualidade e o potencial da área para futuras pesquisas.
PALAVRAS-CHAVE.Polistinae, inventário, diversidade, sazonalidad.
Social wasps (Hymenoptera, Vespidae, Polistinae) usually build nests using vegetable materials mixed with water and salivary secretion, resulting in a product similar to paper. Between April 2009 and March 2010 an inventory of these wasps was made at Unilavras/Boqueirão Biological Reserve, located in the municipality of Ingaí-MG. Thirty four species of social wasps belonging to ten genera were recorded, Polybia fastidiosuscula Saussure (1854) was the most common.
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