Acarological Society of Iran Persian Journal of Acarology 2251-8169 12 3 2025 12 01 Neocarus kayapo, a new species of Opilioacaridae (Parasitiformes) from Brazilian caves 417 430 238317 10.22073/pja.v12i3.80138 EN Leopoldo Bernardi Departamento de Entomologia, Escola Superior de Agricultura, Universidade Federal de Lavras, Campus Universitário, 37200-900 Lavras, MG, Brazil Journal Article Neocarus comprises a genus with a wide range of distribution in the Americas, having occurrences from the southern United States to Argentina. In this context, Brazil is a region with great biodiversity where 17 species of this genus have been described up to now. The present description emphasizes the great biodiversity of Opilioacarida found in Brazil, and the new species, Neocarus kayapo sp. nov. that differs from the others by presenting multiple setae cht (2–4) at the base of both male and female chelicera, and also by the presence of two lateral opposite projections on the ovipositor, clearly a set of features that are unique among the species of the genus Neocarus.

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