Giant Blue Morpho or Morpho didius is among the world’s gigantic butterflies. The species belongs to the subfamily Morphinae or Morpho Menelaus of the family Nymph-alidae. This blue butterfly has an iridescent blue coloration that looks so vivid on its large pair of wings. These wings can span up to eight inches. That’s actually a result of the microscopic scale reflection when their wings get exposed to light. Males have wid-er and brighter wings than females. They are native to tropical forests and are largely found in South American regions.