The planthopper genus Neohemisphaerius Chen, Zhang & Chang, 2014 (Hemiptera: Fulgoroidea: Issidae) is reviewed to include 3 species: N. wugangensis Chen, Zhang & Chang, 2014 (China: Hunan), N. yangi Chen, Zhang & Chang, 2014 (China: Guangdong) and N. guangxiensis sp. n. (China: Guangxi). A revised generic diagnosis is given. The new species is described and all species illustrated. A key to these three species is also given. The species Neohemisphaerius signifer (Walker) is transferred back to Hemisphaerius as H. signifer Walker, comb. revived.