About Smerinthus cerisyi Kirby, 1837
Smerinthus cerisyi Kirby, 1837, has a wingspan of 60–90 mm. Its hindwing features a blue eyespot with a black center. This species produces a single generation per year, meaning it is univoltine, and adult moths can be found through most of the summer. Adult Smerinthus cerisyi do not feed. These moths are nocturnal and are attracted to light. The larvae of this moth feed on willow (Salix), poplar (Populus), pear (Pyrus communis), plum (Prunus), and snowberry (Symphoricarpos). It is distributed across southeastern Alaska, all southern regions of Canadian provinces, the northern border states of the United States, extending south into northern Indiana, Pennsylvania, and Ohio. Along the U.S. west coast, its range reaches southern California, and eastward it extends to the Rocky Mountains, into western New Mexico, and north to western North Dakota. It has also been recorded in Illinois and as far south as Missouri.
