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Approximately 120 species of the chrysomelid genus Gonioctena are currently known from Palaearctic, Nearctic and Oriental Regions, amongst them, 51 occur in China.Two new species of the genus Gonioctena, G. klapperichi sp. nov. (Fujian) and G. oberthueri sp. nov. (Sichuan), are described and illustrated from China. Distinguishing characters from closely-related species are presented, respectively. The Gonioctena fauna of China now includes 53 species, of which about 60% are endemic. Ovoviviparity is newly recorded in G. oberthueri sp. nov.