50 Colones of Costa Rica 2023 UNC - Costa Rican Fauna, Menelaus Blue Morpho

The Menelaus blue morpho (Morpho menelaus) is a striking butterfly species in the subfamily Morphinae, known for its vibrant iridescent blue wings with black edges on the dorsal side and brown coloration on the ventral side. With a wingspan of approximately 12 cm (4.7 inches), this butterfly's shimmering blue appearance is a result of microscopic wing structures that reflect light, making it a subject of scientific research for potential applications in optics and materials science. Due to its captivating color, Morpho menelaus was highly sought after by collectors in the 20th century, leading to extensive hunting. Today, conservation efforts aim to protect this species while balancing commercial interests through sustainable practices.