It is the rarest and biggest of all butterflies. Destruction of its habitat is threatening this beautiful creature with extinction. The most common butterfly is the Cabbage White. Arizona, with 220. Butterflies communicate mostly through chemical signals.
Males produce 'pheromones' to attract females.
A few species communicate with sound. For example, the male Cracker Butterfly can produce noises with its wings. Each scale is a single color, most of which are produced by pigments. The iridescence that's sometimes seen is produced from a reflective microstructure on the surface of the scales. Most insects have a larval stage known as a 'grub', with six legs.