Takahashi, R. 1955a Lecanium of Japan (Homoptera: Coccidae).. Transactions of the Shikoku Entomological Society 4: 69-78.

Notes: Lists 22 scale insects previously assigned; key and descriptive notes for 7 species considered valid - L. cerasorum (misspelled as cerosarum) L. corni, L. glandi, L. horii, L. kunoense, L. kuwanai, L. takachihoi.