11M views · 182K reactions |  The pupal stage is found only in holometabolous insects — those that undergo a complete metamorphosis. These insects go through four life stages; embryo, larva, pupa, and imago. | Science Channel | Facebook

The dance of the unruly pupa. A pupa is the living, breathing, and often... wiggling... middle stage of complete metamorphosis. Pupae are usually calm and relatively stationary, making them easy to photograph in my mini white box studio. However, the pupae of some geometrids, like this Euchlaena species, have proven to be remarkably (and even annoyingly) hyperactive once they are disturbed and start to wiggle. After about ten minutes of watching this pupa spin on stage, I plopped it back in its