Ontogenetic development of chaetotaxy in Tenuipalpidae: a survey with special reference to sexual dimorphism.

In this paper, we provide a comparative survey of ontogenetic development of chaetotaxy in the family Tenuipalpidae, with the aim to compare patterns among species/genera and to discover some general trends. We also want to find gaps within published literature and provide suggestions for future studies. Although we focused on the ontogeny of setal developments, we also reviewed sexual dimorphism in chaetotaxy in the family Tenuipalpidae.

Contributions to Chinese fauna of Torrenticolidae Piersig, 1902 (Acari, Hydrachnidia), with the description of three new species.

Five species of torrenticolid mites (Acari, Hydrachnidia), collected in the Anzihe and Qingliangfeng national nature reserves, R. P. China, are identified. Three species are described as new to science: Torrenticola pseudosiamis Gu & Guo, sp. nov., T. anziensis Gu & Guo, sp. nov., and Monatractides sichuanensis Gu & Guo, sp. nov. The other two species, M. macrocorpis Gu & Guo, 2019, M. xiaoxiensis Gu & Guo, 2019, are newly reported from Zhejiang Province. Descriptions and illustrations of these species are included.