They are found on a range of hosts but are especially common on oaks, bamboos and a number of ornamental plants.

Members of this family occur in most regions of the world but are most abundant in the northern hemisphere.

Eggs are laid under this and occupy the cavity formed as the adult female dies and shrinks in the autumn.

Males are not usually found but when they do occur, they develop under a test in a similar fashion to the females.

This article related to members of the insect superfamily Coccoidea is a stub.