Four new species of the planthopper genus Andes (Hemiptera, Auchenorrhyncha, Cixiidae) from China, with an updated key to species

Four new species of the genus Andes Stål, 1866 (Hemiptera, Auchenorrhyncha, Fulgoromorpha, Cixiidae, Cixiinae, Andini) are described from China: A. cuneatus Lv, Zhi & Chen, sp. nov ., A. luchunensis Lv, Zhi & Chen, sp. nov ., A. scalpratus Lv, Zhi & Chen, sp. nov . from Yunnan Province, and A. orbiculatus Lv, Zhi & Chen, sp. nov . from Fujian Province. Detailed morphological descriptions, illustrations including female terminalia, and diagnostic comparisons are provided for all new species, with a particular emphasis on the male genital structures that distinguish them from congeners. An updated identification key to all known Chinese species of Andes is also presented.