Kerriidae - (lac insects)
This family belongs to the superfamily of Coccoidea, the scale insects. It contains around 90 species. The females do not have legs, degenerated antennae and are enclosed in a dense resinous cell. The shell cover is a natural polymer. It has been and to some extent still is used in Asia to produce lac or shellac. The substance serves as a finish for wood or leather products. The insects, mainly Kerria lacca, are farmed on trees and a single tree can produce more than 5 kg of lac twice a year. Some species like Paratachardina pseudolobata are invasive and considered pests. Others are occasional pests in their native range.
The following genera and individual species are currently entered under Diaspididae: