Abstract
Abstract: Odonata is considered, among the aquatic insect orders, the second largest group in number of species. Its global richness is estimated in about 6,000 described species. The Brazilian richness represents around 14% of the world's odonatofauna, however, the knowledge on Brazilian dragonflies distribution is still poor. This study purpose an inventory of the dragonflies species present in aquatic habitats from a Preserved Area according to the Brazilian Forest Code, located in the Cerrado biome at Triângulo Mineiro, Minas Gerais. In the dry season, from April to June of 2017, we collected 680 specimens belonging to 36 species and six families. Among the collected species, Elasmothemis williamsoni was observed by the first time in Minas Gerais State, and we also found a new species of Tigriagrion (Zygoptera: Coenagrionidae) which is being described by taxonomists. Considering the fast agricultural advance over natural Cerrado systems, species lists can be important to define priority conservation areas for odonate species.
Highlights
IntroductionOdonata (dragonflies and damselflies) is considered the second largest group in number of species (Djikstra et al 2014)
Among the aquatic insects, Odonata is considered the second largest group in number of species (Djikstra et al 2014)
Elasmothemis williamsoni was observed by the first time in Minas Gerais State, and we found a new species of Tigriagrion (Zygoptera: Coenagrionidae) which is being described by taxonomists
Summary
Odonata (dragonflies and damselflies) is considered the second largest group in number of species (Djikstra et al 2014). Studies involving Odonata are raising in Brazil (see Miguel et al 2017), since odonates are charismatic insects (Corbet 1999), has a well resolved taxonomic status (Garrison et al 2006, 2010, Lencioni 2005, 2006, 2017) and are observed and manipulated in the field (De Marco & Vianna 2005) Many of these studies are focused on describing new species (e.g., Guillermo-Ferreira et al 2016, Ávila et al 2017, Vilela et al 2018), in species inventories Even though Odonata is one of the most studied insect orders in Brazil, there still is a lack of knowledge about its distribution in many places in the national territory
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