There are many wax glands which result in forming a turtle-like wax shell on the dorsal surface.

预蛹和蛹不再取食，虫体隐藏在白色的半透明蜡壳内。

youdao

There are many wax glands which result in forming a turtle-like wax shell on the dorsal surface.

预蛹和蛹不再取食，虫体隐藏在白色的半透明蜡壳内。

youdao