Asterolecaniidae

Asterolecaniidae is a family of scale insects commonly known as pit scales or asterolecaniids. They typically cause a depression in the host plant`s tissues and often cause distortion of the shoots. 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....
Found on http://en.wikipedia.org/wiki/Asterolecaniidae
No exact match found