Cremaster
The
tiny post at the top of the chrysalis is called the cremaster. The chrysalis twists and turns as it forms, embedding the hook-topped cremaster firmly into the silk pad. The fragile chrysalis must hang securely from the cremaster for the two weeks it takes the adult butterfly to develop.
![Cremaster](https://s3.us-east-2.amazonaws.com/journeynorth.org/images/graphics/monarch/lpb/cremaster_sem_labels3.gif)
Image
© Dr. Lincoln Brower, Sweet Briar College. All Rights Reserved.
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