How does a catterpillar just develop wings?

Question

are they inside it already and through the cacoon thing they just pop out?!

Answer 1

Hi

Two caterpillars sunbathing on a leaf, suddenly a butterfly flew over them, one Caterpillar said to the other, 'Phew look at that, you'll never get me up in one of those'.

Ray. West York's. U.K.

Answer 2

No. Inside the actual pupa or chysalis, not the hairy stuff, the caterpillar completely liquidates save for some vital organs. Then, through time, the body organizes itself to create a butterfly. Certain past organs, like the feet, go to the parts of the butterfly. The inside of the pupa, especially new ones, is completely like liquid or jello. This liquid organizes iteself, and forms wing cells. Once the thing hatches, the wings were already formed, but they are wet because they had contact with a lot of water. Also, once a butterfly/moth leaves its cocoon, it will drip a substance out of its a**s for some time. Since the pupa/chrysalis does not have an excretory system, they do all the poo and pee there.