Morpho didius is a species of butterfly belonging to the family Nymphalidae. It is commonly found in the tropical forests of Central and South America, particularly in countries like Costa Rica and Panama. Known for its striking iridescent blue wings, this butterfly is a popular subject for nature enthusiasts and photographers. The wingspan of Morpho didius can reach up to 10 inches, making it one of the largest butterflies in its range. Its vibrant coloration serves as a warning to predators, indicating that it may be toxic. The larvae feed on various plants, contributing to the ecosystem's biodiversity.