Cocoon Vs. Chrysalis

A friend of mine pointed out that our butterflies are actually in their chrysalises (or chrysalides), and not in cocoons. I looked it up, and sure enough, she was right! Butterflies actually don't spin cocoons, but shed their skin for a last time and then harden into the chrysalis. Moths are the ones who spin a silk cocoon with their spinnerets similar to the way a spider spins its web. So, a butterfly has a chrysalis, which is a hard shell, and a moth has a cocoon, which is a soft spun enclosure. The Very Hungry Caterpillar was WRONG! :-)