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Five species of Unionicola Haldeman, 1842 (Acari: Hydrachnidia: Unionicolidae) were collected between 2018 and 2019. Notably, Unionicola (Armatax) armata Walter, 1929, previously unrecorded in China, is now documented for the first time in the country. Additionally, Unionicola newsumi Wiles, 1999 has been reclassified and assigned to the new subgenus Vespicola within the genus Unionicola Haldeman, 1842. These findings also led to the establishment of three new subgenera: Micronodusgen. nov., Vespicolagen. nov., and Lingshuiataxgen. nov. including four species: Unionicola soluplatussp. nov. U. jinisp. nov. U. caudipessp. nov. and U. armatallasp. nov. This marks the first description and documentation of these subgenera and species. [ABSTRACT FROM AUTHOR]

A brief introduction of Chinese Limnesiidae taxonomy is provided. Adults of two new species, Limnesia (Limnesia) lupingae Li & Guo sp. nov. and Limnesia (Limnesia) macrophthalma Li & Guo sp. nov., from Heilongjiang and Hubei provinces respectively, are described in detail. Subtle structures are recorded with scanning electron micrographs. In addition, deutonymphs of two new species are also described in detail and compared with the adults in discussion. [ABSTRACT FROM AUTHOR]

The present paper deals with two new species, Atractides (Atractides) bitergumus Zhang & Guo sp. nov. and Atractides (Tympanomegapus) tergumus Zhang & Guo sp. nov., and a new record of a species, Atractides (Atractides) incertus, from Hainan Province, P. R. China. These species are described and illustrated in detail. Article: Atractides (Atractides) bitergumus: Atractides (Tympanomegapus) tergumus: [ABSTRACT FROM AUTHOR]

The genus Dyneogamasus is transferred to the subfamily Pergamasinae, and the generic diagnosis is revised. A new mite species, Dyneogamasus serratus Yao & Jin sp. nov., is described and illustrated based on females from Fujian province, China. A key to the known species of the genus is given. [ABSTRACT FROM AUTHOR]

Three new aturid species are described and illustrated from China: Woolastookia allobasilicalabricasp. nov., and Paraxonopsis suturasp. nov. in the Axonopsinae, and Aturus jixiensissp. nov. in the Aturinae. The genus Paraxonopsis is a newly recorded genus for the Chinese fauna. Woolastookia allobasilicalabricasp. nov. is the third species and Aturus jixiensissp. nov. is the second species in their respective genera from China. A key to the Chinese fauna of Aturidae is provided in this paper. Meanwhile, the diagnosis of Paraxonopsis is revised. [ABSTRACT FROM AUTHOR]