| abstract | In this work, we described and illustrated 16 species, including 10 new species, one new combinaiton and two new records of eriophyoid mites infesting Yushania niitakayamensis (Poaceae: Bambuseae) in Taiwan. They are Phytoptus formosanus sp.nov., Eriophyes magnus sp.nov., Aceria tosichella Keifer, 1969, Aceria niitakayamensis sp.nov., Neopentamerus deciensus sp.nov., Epitrimerus niitakayamensis sp.nov., Abacarus panticis Keifer, 1977, Abacarus niitakayamensis sp.nov., Aculops yushanus (Huang, 2001) comb.nov., Tetra yushania Huang, 2001, Tetra paikoutashansis sp.nov., Tetra syuesis sp.nov., Tetra niitakayameniss sp.nov., Tegolophus bashaniae Xue et al, 2006, Apodiptacus taipinshansus sp.nov. A key to the mites infesting Yushania niitakayamensis is provided. |