Side on shot of 0.5cm moth on a wooden outdoors table. It faces right. It is long and tubular, holding its wing very tight to its abdomen It is white with a number of random black dots, particularly more so running in a line along the outside wing edge close to the table surface, but they are generally all over. Its distinctive markings from other yponomeuta species are areas of grey suffusion, a faint spot on its back, a larger smudge in the middle of the wing, and again greying to the fringed termen (back wing edge furthest away from its head). It has two coiled orange galeae (like a thin, long tongue) for feeding and long white antennae which it holds close to its body. It has a tiny head which pinhead eyes (right side only visible in this picture) and two palps (lips) which curve up from its mouth. It also has thin white legs.