white or yellowish-white crystalline wax resembling spermaceti but harder, more friable, and with a higher melting point. It is deposited on the branches of certain trees by the scale insect Ceroplastes ceriferus, common in China and India, or a related scale insect, Ericerus pe-la, of China and Japan. Both of these scale insects are classified in the sucking insect order, Homoptera. The insects and their secretions are harvested and boiled with water to extract the raw wax. The insect bodies, which settle to the bottom, are used as food for swine.

Chinese wax is used chiefly for making candles and polishes and as a sizing for paper. In China the wax has been employed medicinally. Taken internally, it has been used as a remedy for hoarseness, pain, worms, nervousness, and to aid the mending of broken bones. Externally, it has been used as an ointment for treatment of wounds.