Smerinthus ocellatus, known as the eyed hawk-moth, is a European moth of the family Sphingidae. The eyespots are not visible in resting position, where the forewings cover them. They are displayed when the moth feels threatened, and may startle a potential predator, giving the moth a chance to escape. The adult moth has a wingspan of 70–80 millimetres (2.8–3.1 in).