Northern Prairie Wildlife Research Center
Wingspan 3.7 cm. Forewing is mostly clear of scales except for narrow black basal and marginal bands; thorax yellow; abdomen black and yellow banded. This sphingid is widely distributed in western North America. Moths fly during the day in spring and early summer. Caterpillars feed mainly on the foliage of snowberry (Symphoricarpos albus) and honeysuckle (Lonicera).