After their next blood meal, they molt once again into the adult stage.
After about two days it makes the final molt to reveal the pretty pupa.
After the first molt of their skin, they descend and go off on their own.
The young spiders then molt to the second stage and begin feeding.
On average, an adult spider molts once a year whilst younger spiders may molts once a year whilst younger spiders may molt more regularly due to their bodies growing faster.