The Monarch Chrysalis

“When the caterpillar is a full grown fifth instar caterpillar it is ready to molt the fifth time  to become a pupa, or chrysalis. The caterpillar will begin to wander until it finds an appropriate place to create its chrysalis. It will lay down a silk mat, like it has every time that it has molted before.  But this time it will spend time creating a small wad of silk–a silk button—in the middle of its mat.  When it is ready it will grasp the silk button with it last prolegs and hang upside down. This is called hanging in “j.”  

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