Leptosia nina has white wings that are small and rounded. The upper sides of the wings are white with black apical borders and black subapical spots. The underside of the wings is white with irregular stripes of pale green.
Larva: Leptosia nina larvae are cylindrical in shape with a length of 1.8 mm, whitish with a yellowish green base color when hatched. Its body is covered in turbecles with long and emerging setae. At the end of each setae there are tiny droplets. At the 5th instar stage, the caterpillars are yellowish green, the turbecles are darker in color.
Pupa: Leptosia nina pupae are green, have very short and pointed horns on their heads, and protrusions on their back. The length of the pupa is about 13.5 – 14.5 mm.