A key to all 14 species of Aristochroa Tschitschérine is provided with a description of A. zhongdianensis new species, from Yunnan, China. The new species is similar to A. deuvi Xie and Yu 1993 with the same conformation of elytral intervals 1, 3 and 5, but differs by smooth vertex, proepisterna, metepisterna, and inner basal fovea of pronotum (all punctate in A. deuvi). The new species is also similar to A. balangensis Xie and Yu 1993 with smooth proepisterna and narrow elytral intervals 1, 3 and 5, but differs from it in having the prosternum not longitudinally depressed, frontal furrows of head and outer basal fovea of pronotum punctate, and elytral interval 5 ended near sub-apical margin. The symmetric apical lamella of aedeagus in dorsal view in the new species differs from bent ones in A. deuvi and A. balangensis. Type specimens are deposited in the Institute of Zoology, Chinese Academy of Sciences, Beijing, China.