Black Swallowtail butterflies stay in their cocoon for 9 to 11 days.
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.
Our gold rim swallowtail just came out of its cocoon. It took almost exactly two weeks. Everything I have read says it should take about two weeks.
All the natural world and the products of the natural world are variations. Some cocoons could be spun too think and trap the butterfly within the cocoon and it would not emerge. Some caterpillars might not complete metamorphosis and then not emerge from the cocoon. Some butterfly's might be too weak and malformed to emerge from the cocoon. So, it would be correct to say that some butterfly's do not emerge from their cocoons.
White-lined sphinx caterpillars form their cocoons in underground burrows and remain there for two to three weeks before they emerge.
A Monarch chrysalis/pupa (cocoon is actually an improper term) will begin to turn color the day before the butterfly emerges. It will emerge in less than 24 hours once the chrysalis is totally clear and you can see the wings and body inside. If you notice the color change in the evening, it will emerge the next morning. If you see the color change in the morning, it should emerge before noon. If it looks like it's covered in plastic wrap, it won't be immediate. Once it begins to have a wax paper look, it will emerge soon.
a cocoon cant turn into a caterpiller because a caterpiller turns into a cocoon then turns into a butterfly
Silkworms, which emerge from their cocoons as moths, spin cocoons that are the raw material for the fibre humans use as silk. Cocoons are harvested from domesticated silkworms by heating the cocoon to kill the animal, then the silk cocoon is unraveled. Once the moth has emerged -- in wild silkworms for example, the cocoon's silk can be harvested, but not in one continuous length. As a moth, there is no connection with the now-discarded cocoon.
we are clueless
They lay eggs on Brassicas and their caterpillars will hatch and eat the leaves. Eventually, the caterpillar will spin a cocoon from inside which an adult butterfly will emerge.
They emerge from their cocoons about ten days after spinning them.
12 DAYS
it takes about 10 to 14 days for a mourning cloak butterfly to get out of cocoon.