Adults: Mature moths are a light brown colour, with a brown and yellow circle near the margin of each forewing. They possess faint brown-black lines highlighting the wing veins. There is a thin, creamy white squiggly line which runs across both the forewings at the rear margin, each comprising a W shape in the centre of the line.
Larvae: Caterpillars can be green, light brown or dark brown with a yellow-cream line running horizontally down the body, that is speckled with white and pairs of black dots. They measure roughly 4cm in length.
Eggs: The eggs are tiny, spherical and creamy-white; laid in clusters of 20-40 on dandelion, dock, plantain and tomato plants.