Morpho lympharis is a large butterfly. The crystal-clear wings are suffused blue or iridescent pink. The reverse side is decorated with a row of ocelli.
Morpho lympharis replaces M. portis in the Andean region, but has hitherto only been found in Peru and was described from Paucartambo Province. The male above somewhat darker blue than M. aega and with subapical white punctiform spots on the forewing. Underside of both wings with three ocelli, of which the apical and the two intermediate ones are elongate-oval in shape. Otherwise as M. portis.
Blandin (1993), considers Morpho lympharis conspecific with Morpho sulkowskyi and that it is one of a north-south succession of subspecies spread from Colombia to Bolivia. Lamas (2004) considers that there are two species, M. sulkowskyi ranging from Colombia to central Peru, and M. lympharis, ranging from central Peru to Bolivia.