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Three new species of the genus Diptilomiopus Nalepa viz., Diptilomiopus osmanthis sp. nov. infesting Osmanthus fragrans Lour. (Oleaceae), Diptilomiopus radermacherae sp. nov. infesting Radermachera sinica (Hance) Hemsl. (Bignoniaceae) and Diptilomiopus styracus sp. nov. infesting Styrax tonkinensis (Pierre) Craib ex Hartw. (Styracaceae) are described and illustrated. All three new species are vagrant on the leaves of their host plant respectively causing no visible damage.

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Two new genera, three new species and three new records of eriophyoid mites from China are described and illustrated: Medicavarus rhododendrus gen. nov. et sp. nov. from Rhododendron delavayi Franch. (Ericaceae); Rhycanonaequitas laevifolia gen. nov. et sp. nov. from Magnolia laevifolia (Y.W. Law & Y.F. Wu) Noot. (Magnoliaceae); Cosella quihouis sp. nov. on Ligustrum quihoui Carr. (Oleaceae); Rhombacus eucalypti Ghosh & Chakrabarti, 1987 rec. nov. on Eucalyptus sp. (Myrtaceae); Keiferana neolitsiae (Channabasavanna, 1966) rec. nov. on Cinnamomum burmanni (Nees et T. Nees) Blume (Lauraceae); Petanovicia cathartica Zhao, Li & Wang, 2018 rec. nov. on Allamanda schottii Pohl (Apocynaceae).