Euploea midamus has black wings with white spots on the edges of the wings. The subapical spots of the forewings are square in shape and there are 4 elongated spots on the apex of the forewings which distinguish them from Euploea crameri. The head and body are black with white spots.
Larva: Euploea midamus larvae are cylindrical yellow in shape with black, long, curved dorso-lateral protrusions.
Pupa: Euploea midamus pupae are silvery yellow with black spots.