Amazingly, butterflies do not have blue pigmentation.
Their blue coloration is what is called "Structural Color."
It is derived from sunlight being refracted by the thousands
of microscopic scales on their wings.
When these seemingly blue butterflies fly out of sunlight,
either into a shaded area, or under a plant leaf, they will instantly
revert back to their base dorsal wing color.
In this way, they will become invisible to the predator that had been