Preliminary checklist of dragonflies and damselflies (Insecta: Odonata) from the Serra do Japi Biological Reserve, Jundiaí, São Paulo, Brazil, and new records for the state

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Abstract
The present study provides a preliminary Odonata inventory for the Serra do Japi Biological Reserve, an important Atlantic Forest conservation unit in São Paulo State, Brazil. We recorded 22 species, representing 7.5% of the Odonata fauna previously known for the state. Among them, three are new records for São Paulo, highlighting the potential for further discoveries in unexplored Atlantic Forest remnants. Libellulidae and Coenagrionidae were the most diverse and abundant families, a pattern similar to that observed in other studies of Atlantic Forest odonate assemblages. Species richness was similar between the lentic and lotic habitats, with some taxa exhibiting clear habitat preferences. The recorded species composition reflects the environmental heterogeneity of the SJBR and the availability of suitable microhabitats for odonates. Additionally, the presence of Brechmorhoga goncalvensis Vilela, Stefani-Santos & Ávila Júnior, 2021, and Heteragrion tiradentense Machado & Bedê, 2006, both listed as near threatened, underscores the role of the SJBR as an essential refuge for range-restricted and sensitive species. These findings reinforce the importance of Atlantic Forest reserves in maintaining regional Odonata diversity and contribute to a broader understanding of species distribution patterns.
Funding Information
  • Prefeitura de Jundiaí and Fundação Serra do Japi (313523/2025-8)
  • Prefeitura de Jundiaí and Fundação Serra do Japi (#88887.820575/2023-00)
  • Prefeitura de Jundiaí and Fundação Serra do Japi (001)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (313523/2025-8)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (#88887.820575/2023-00)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (001)
  • Coordination for the Improvement of Higher Education Personnel, Brazil (313523/2025-8)
  • Coordination for the Improvement of Higher Education Personnel, Brazil (#88887.820575/2023-00)
  • Coordination for the Improvement of Higher Education Personnel, Brazil (001)

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