Sphinx ligustri, the privet hawk moth, is a moth found in most of the Palearctic realm. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae.
It has a 12 cm wingspan (generally deflexed at rest), and is found in urban areas, forests and woodlands. The male privet hawk moth can make a hissing sound, if disturbed, by rubbing together a set of scales and spines at the end of its abdomen. The larvae are usually found between July and August: and bury themselves in the earth when preparing to become a pupa. They then fly in the following June.
As its name describes, the caterpillars feed on privets, as well as ash trees, lilacs, jasmine, and a number of other plants.