Hexmoth

At first glance, hexworms appear to be nondescript grubs, but their ability to sense and consume magic quickly becomes clear. They grow rapidly, devouring the power in witches' huts, arcanists' studies, and magical glades at an alarming rate before spinning cocoons and emerging as beautiful, varied hexmoths.

Hexmoth (Creature 8), Hexworm (Creature 4)