Egg.—Oval; pale apple green, smooth shining; slightly flattened above and below. Width, 2 mm.; height, 1.50 mm.

Clemens, in his Synopsis of North American Sphingidæ, p. 182 (Journ.Ac. Nat. Sci., Phil., 1859), describes the egg as being “smooth, white, with an equatorial reddish-brown band, having a slender central white line.” All the eggs, about one hundered and fifty in number, which I examined were entirely green, with no indications whatever of the bands mentioned by Clemens.