Macromotettixoides angustivertex Zha & Peng sp. nov. and M. hainanensis (Liang) (= Hyboella hainanensis Liang), collected from Hainan Island, PR China, are described, photographed and compared with their allies. Based on the morphological characters of the two species, generic characteristics of the genus Macromotettixoides are updated. Pseudomacromotettix taiwanensis Zheng, Li & Lin, syn. nov. is synonymized with M. taiwanensis (Liang) (= Hyboella taiwanensis Liang), and the monotypic Pseudomacromotettix Zheng, Li & Lin, syn. gen. is synonymized with Macromotettixoides Zheng, Wei & Jiang. We also give ecological information for the two described species.