Memphis moruus is a species of leafwing found in South America.

Subspecies: 

• Memphis moruus moruus; present in Brazil and French Guiana.
• Memphis moruus boisduvali
• Memphis moruus leonila (Comstock, 1961); present in Ecuador.
• Memphis moruus morpheus (Staudinger, [1886]) present in Brazil.
• Memphis moruus phila (Druce, 1877) present in Colombia and Ecuador.
• Memphis moruus stheno (Prittwitz, 1865) present in Brazil.

 Memphis moruus has forewings with a pointed apex and a concave outer edge, and hindwings with a tail. The upper part is metallic blue with a lighter basal part and a darker navy blue to brown distal part. The underside is light brown and simulates a dead leaf.

Biology: The host plants of its caterpillar are Nectandra (Lauraceae) for Memphis moruus boisduvali.