scale insect

scale-insect的词性：
n.（名词）

1. Any of various small homopterous insects of the superfamily Coccoidea that suck the juices of plants and the females of which secrete and remain under waxy scales on plant tissue.
介壳虫：任一种介壳虫总科的小型同翅目昆虫，靠吸取植物的汁液生存，雌性介壳虫在植物组织上分泌蜡壳并置身其下