Seen a green butterfly is not a common occasion, they are rare across the globe and green pigment is the issue here. Green natural pigments get chemically altered by sunlight and that causes green pigments to fade quickly. The second issue that makes green butterflies rare is their mating habits, most day-flying adult butterflies need to combine bright and vivid colors with a muted cryptic to be able to hide or roost. That makes green butterflies so rare and due to their rarity, some people even see them as a signal of the big win that will lead them to financial or material wealth. A colorful fauna custom progress bar with Green Butterfly.