chrysalis

The monarch caterpillar attaches itself to a leaf before forming a green chrysalis.

(Chinese) 黑脉金斑蝶的幼虫在形成绿色的蛹之前会把自己附着在叶子上。

The student watched closely as the butterfly finally emerged from its dry chrysalis.

(Chinese) 学生仔细观察蝴蝶终于从干燥的蛹中破壳而出的过程。