Two new species, Samarangopus testudineussp. nov. from Hunan, South China and S. rotundifoliussp. nov. from Zhejiang, East China, are described and illustrated. Samarangopus testudineussp. nov. is characterized by unusual testudinal patterns on the dorsal side of the body and well-differentiated marginal protuberances on tergites. Samarangopus rotundifoliussp. nov. features large, round, leaf-shaped marginal protuberances and small, candle-like dorsal protuberances on tergites. Both of these species are compared to similar species in detail. In addition, Eurypauropus japonicus Hagino & Scheller, 1985 is newly recorded from China.