Two new felt scale species (Hemiptera: Coccomorpha: Eriococcidae) collected in Japan, Acanthococcus torikurai Tanaka sp. nov. and Anophococcus koguchii Tanaka sp. nov., are described and illustrated based on the morphological characteristics of the adult females. Acanthococcus torikurai is similar to A. spiraeae Borchsenius 1949 but lacks small pores on hind legs, spinulae on the meso- and metathoracic coxae, a cauda on abdominal segment VIII and capitate ventral setae. Anophococcus koguchii is similar to An. socialis (Goux 1931) but differs in having seven-segmented antennae, two different sizes of macrotubular ducts on the venter, multilocular pores mostly with five loculi rather than seven or eight, and in lacking large pores on the metathoracic coxae and a cauda on abdominal segment VIII. A key to the 17 Eriococcidae species found in Japan is also provided.