Two new species of the delphacid genusMalaxa Melichar, 1914, M.hamuliferum sp. nov. and M.tricuspis sp. nov., are described and illustrated from southwest China (Yunnan and Hainan), providing the genus with eleven species in total. A key is provided to distinguish the seven Chinese species in the genus.
Keywords: Fulgoromorpha; Bamboo planthopper; morphology; oriental region; taxonomy.