the third stage of a butterflies life is the pupa. this stage is between the caterpillar and the adult butterfly. though this looks like a sealed box, there is life inside and the part of the adult butterflies are formed inside. A couple of days ago, i shared a photo of a butterfly eclosing from the pupa. This is the Ariadne merione, the common castor butterfly in its pupa, redesigning itself to emerge as an adult butterfly! (bg changed to black in PS)