The Laurel Sphinx Moth has a wingspan of 3 to 4 inches. The forewing is fawn-colored with dark brown shading along the inner margins and veins. The Subterminal line is a row of white-edged black wedges. The narrow hindwing is black with a broad white stripe. The caterpillar is blue, yellow or green with 7 oblique, white abdominal lines edged black above and usually yellow below. The green head is marked with a black line. The spiracles are orange. The horn is blue with tiny black spines. The mid-abdominal prolegs have a yellow band above black crescents at the bottom of the leg.