Abstract
The Acre and Rondônia states in Brazil are part of Western Amazon rainforest in Brazil, an area harboring high biodiversity and high degree of endemisms Nevertheless, there are few studies on diversity of social wasps occurring in both states. This study presents a list of social wasps (Vespidae: Polistinae) collected using three modified Malaise traps model: Townes, Gressit and Gressit, and suspended traps in two localities in Acre and two in Rondônia state. A total of 60 species were collected, 20 of these species are new distribution records to Acre state and 54 species, 15 of these species are new distribution records to Rondônia state. Some species are not commonly found in the collections and lists of species, and some are recorded for the first or second time to Brazil or the Amazon region. Now there are 114 species (19 genera) for Acre and 116 species (19 genera) for Rondônia. This increase may be an indication that the Polistinae richness is probably higher in the regions studied and that Acre and Rondônia may well contain a number of additional (as yet unrecorded) social wasp species. He we present an updated about the geographic records of social wasps’ fauna in both states.
Highlights
The Amazon rainforest is the largest biome within the Brazilian territory, covering an area of 4,196.943 Km2 (Ministério do Meio Ambiente, 2018)
A long term collection of one year was carried out within the network ‘Biodiversity of Insects in the Amazon’ and we present here the social wasps results of two different areas sampled in Acre and two in Rondônia States
A total of 114 species in 19 genera of social wasps were recorded for Acre; we identified 60 species in our samples, 40 already reported in literature and 20 as new collecting records
Summary
The Amazon rainforest is the largest biome within the Brazilian territory, covering an area of 4,196.943 Km2 (Ministério do Meio Ambiente, 2018). In order to develop any effective conservation proposals, first of all, it is necessary to acquire knowledge of the species that occur in a particular area. For this reason, the thematic network ‘Biodiversity of Insects in the Amazon’ is the first network among researchers of the Brazilian Amazon in terms of the increase of knowledge and provision of subsidies for the conservation of Amazonian biodiversity, focusing on insects, and to disseminate this knowledge to different sectors of our society (see Somavilla et al, 2020). Similar works have been carried out in the Brazilian Amazon, such as in Acre State (Morato et al, 2008; Gomes et al, 2018), Amapá State (Silveira et al, 2008; Silveira et al, 2019), Amazonas State (Silveira et al, 2008; Somavilla et al, 2015; Somavilla et al, 2016; Somavilla & Oliveira, 2017; Somavilla et al, 2019; Somavilla et al, 2020), Maranhão State (Somavilla et al, 2014b), Pará State (Silveira, 2002; Silva & Silveira, 2009), Rondônia State (Gomes et al, 2020), and Roraima State (Raw, 1998; Barroso et al, 2017)
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