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15 August 2024 Two new species of Clathrosperchon (Hydrachnidia: Rhynchohydracaridae), and phylogenetic placement of Rhynchohydracaridae
Dante Batista-Ribeiro, Samuel Geremias Dos Santos Costa, Luiz Alexandre Simões de Castro, Almir Rogério Pepato
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Abstract

Two new Clathrosperchon (Rhynchohydracaridae: Hydryphantoidea) species were described (Clathrosperchon nunesae sp. nov. and C. bitucai sp. nov.) and tabular and dichotoumous keys to the known Clathrosperchon species based on adults are provided. In addition, the phylogenetic placement of Rhynchohydracaridae was inferred using five molecular markers: COI, 18S, 28S, HSP70 and SRP54, testing previous hypothesis that the family may be more closely related to Neohydrachnidia than Hydryphantoidea due to larval characters. Our results recovered Rhynchohydracaridae nested among Lebertioidea, as sister group to Limnesiidae, and the traditional composition of Hydryphantoidea and Lebertioidea could be rejected based on AU-test. Given the larval characters and the recovered phylogenetic placement of the family, we propose that Rhynchohydracaridae must be included in Neohydrachnidia. This paper represents the first record of Hydrachnidia for the Minas Gerais State, Brazil, and is also the largest dataset of neotropical water mites included in a phylogenetic inference to date.

Dante Batista-Ribeiro, Samuel Geremias Dos Santos Costa, Luiz Alexandre Simões de Castro, and Almir Rogério Pepato "Two new species of Clathrosperchon (Hydrachnidia: Rhynchohydracaridae), and phylogenetic placement of Rhynchohydracaridae," Systematic and Applied Acarology 29(8), 1116-1131, (15 August 2024). https://doi.org/10.11158/saa.29.8.6
Received: 20 March 2024; Accepted: 26 July 2024; Published: 15 August 2024
KEYWORDS
Clathrosperchon
Hydryphantoidea
Integrative taxonomy
Lebertioidea
phylogenetic placement
Water mites
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