软体动物或其他动物的外壳。主要由石灰质和色素构成，质地坚硬，具有保护功能。
同时它还利用那些以树液为生的介壳虫助自己扫荡雨林。
It is also wiping out the rainforest, by farming the scale insects that feed on tree-sap.
墨西哥红色小介壳虫，吃仙人掌；是红色染料的原料。
Mexican red scale insect that feeds on cacti; the source of a red dye.
同翅目的属于同翅目的，其中包括以吸口器为特点的蝉，蜂虫和介壳虫。
Of or belonging to the order Homoptera, which includes the cicadas, aphids, and scale insects, characterized by sucking mouthparts.
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