Odonata (Insecta) na Reserva de Desenvolvimento Sustentável do Uatumã, Amazonas, Brasil: taxonomia e inventário

Abstract

In this work, we present the faunal survey of Odonata species occurring in the Uatumã Sustainable Development Reserve (RDS), as well as a dichotomous key to identify the genera occurring in this location. RDS is a Conservation Unit (UC) located in the state of Amazonas, Brazil. Knowledge about the existing biodiversity in the study is important for the preservation and conservation of the place, which is home to an exuberant biodiversity of Brazilian fauna and flora. Our objective was to contribute information about the distribution of Odonata to the Amazon biome. For this, we collected in the months of August and November 2022 and September 2023 throughout the three poles that make up the RDS, totaling 32 sampling points. The collection methods were through active search with the aid of an entomological net and passive collection with the aid of flight interception traps, of the Malaise type. Seven families, 33 genera and 60 species were catalogued, one of these represents a new record for Brazil: Oligoclada garrisoni De Marmels, 2008 and five for the state of Amazonas: Micrathyria occipita Westfall, 1992; Micrathyria dunklei Westfall, 1992; Metaleptobasis diceras (Selys, 1877); Phoenicagrion flavescens Machado, 2010 and Protoneura paucinervis Selys, 1886. We created a dichotomous key to identify adults collected in the RDS, organized into Suborder, Family and Genus. We reinforce the need for new studies in unexplored areas in the Amazon in order to guarantee the integrity and biodiversity of the biome.