We examined Chinese stonefly specimens of the Rhopalopsole vietnamica ‘western assemblage’ group. A new species from Hainan Province, R. bawanglinga Li, Li & Yang, sp. nov. is described and illustrated from male and female adults, and it is compared to closely related taxa. The hitherto unknown female of R. hainana Li & Yang, 2010 is described. Morphological evidence is presented for the identity of R. dentiloba Wu, 1973, on the basis of topotypes from Yunnan Province, southwestern China.
