The Menelaus Blue Morpho (Morpho menelaus) is an iridescent tropical butterfly of Central and South America. It has a wing span of 15 cm (5.9 in). The adult drinks juice from rotten fruit with its long proboscis, which is like a sucking tube. The adult males have brighter colours than the females.
Morpho menelaus is a very large butterfly, with a wingspan of approximately 138 mm.The forewing is concave at the outer edge. The upperside of wings are metallic blue.The underside is brown with a line of large ocelli at the base of the postdiscal area.
Morpho butterflies are Neotropical butterflies found mostly in Central America as well as Mexico and South America including Brazil, Costa Rica and Venezuela. source