Two weeks unless close to winter then they will almost hibernate until spring.
The species you are referring to is likely the Polyphemus moth, which spins a white, papery cocoon that resembles cotton. This species is native to North America and belongs to the silk moth family. The cocoon is usually found hanging from tree branches or other structures.
Adult Polyphemus moth's life span is only about a week. The male and female mate and the female lays her eggs during this time span.
The Cinnabar Moth will stay in their cocoon for a period of nine months. They cocoon themselves in the early summer and do not emerge from the cocoon until the next spring.
1 week
The Spotted Apatelode Moth goes through complete metamorphosis. It takes a little more than two weeks for the moth to reach the cocoon stage.
Antheraea polyphemus, commonly known as the Polyphemus moth, symbolizes transformation and new beginnings in spiritual contexts. Its life cycle, which includes metamorphosis from caterpillar to cocoon to moth, represents personal growth and the potential for change. Spiritually, encountering this moth may remind individuals to embrace their own transformations and to trust in the process of evolution in their lives. Additionally, its large, striking eyespots on the wings are often interpreted as symbols of protection and awareness.
5 ~ 6 weeks
Silk fibers are obtained from the cocoon of silk larvae, larvae of the silk moth, which are spun from the cocoon into one, long thread.
egg, catterpillar, cocoon, moth
Well it depends what kind of yellow caterpillar you are talking about, if the one you are suggesting about is the size and thickness of your thumb, then yes it is, it's proper name is a "Polyphemus Moth Caterpillar". Polyphemus eat maple, birch, willow and several other trees, but are seldom abundant enough to cause any damage. As big as they are, they are really hard to see among the foliage when they're resting. As with many caterpillars that leave the food plant to spin a cocoon, Polyphemus are sometimes seen wandering around in late summer. This caterpillar spins a tough, brown, oval cocoon that you may find attached to the eaves around your house during the winter.
A silkworm comes out of the silk cocoon as a moth, if its life is allowed to complete a full cycle.
A caterpilar lives in a cocoon to turn into a buterfly a moth