Six new Adoretus species from North Thailand are described under the names Adoretus (Adoretus) takahashii sp. nov. A. (A.) rubiginosus sp. nov., A. (A.) doisaketensis sp. nov., A. (A.) masumotoi sp. nov., A. (A.) loeiensis sp. nov. and A. (A.) takakuwai sp. nov. A list of Thai Adoretus including three new-recorded species is also provided.
