Two new species of the genus Proutia are described from Japan based on both sexes. Proutia maculatella sp. nov. is distinctive in having maculated forewing upperside. Proutia nigra, sp. nov. has unicolorous blackish brown forewing upperside and similar to the European species, P. betulina, but differs from the latter in the longer processes of the male valvae and shorter female antennae.