Kuwana, S.I. 1923b I. Descriptions and biology of new or little-known coccids from Japan.. Bulletin of Agriculture and Commerce, Imperial Plant Quarantine Station, Yokohama 3: 1-67.

Notes: Descriptions and biology of Prontaspis yanonensis, Ceroplastes rubens, C. floridensis, C. ceriferus; 3 new species.