Egg.—Conoidal, the base flattened and rounded; marked by 8 or 9 vertical ribs, which near the base are low, but on upper third are considerably elevated, increase gradually in prominence and terminate abruptly around a small flat space at summit; these ribs are thin and their sides are grooved perpendicular to the surface of the egg; color pale green. Duration of this stage from 3 to 4 days in summer, in April and early May 10 days.

Egg.—Diameter .03 inch. Shape globular, the base rather broad, the sides ribbed longitudinally, 12 of these ridges which reach the apex alternating with twice as many more of different lengths. The ridges are connected by slender cross bars, the transverse sides of the included spaces being longer than the longitudinal. The small apical space is punctured. Color white. Duration of this period, 4 days.

Young Larva.—Length .07 of an inch. Color pale grayish-white, a little pinkish on the anterior part. Head and top of joint 1 black. Piliferous spots small, black, the gray hairs arising from each a little longer than the diameter of the body. Legs 16, but the first and second pairs of abdominal, short so that the middle of the body is arched a little in walking. After eating the color of the body is pale grayish green. The piliferous spots, or at least the thoracic, in a single transverse row to each joint. Duration of this period, 8 days.

Sub-genus Therisplectes.—“Eyes pubescent; ocelligerous tubercle more or less distinct; eyes (female) with three or four bright green or bluish cross-bands.”

T. Californicus, n. sp. Length 17 mm. Eyes pubescent, with thin purplish bands. Front yellowish-gray; callosity nearly square, brownish, shining, prolonged above; ocelligerous tubercles brownish-black on a black spot. Face and cheeks grayish with white hairs. Palpi yellowish white with small black hairs, Antennæ reddish; annulate portion of third joint black; upper angle prominent. Thorax grayish-brown with the usual gray stripes and golden yellow pubescence; humerus reddish; pleura and pectus grayish with long white hairs. Abdomen brownish-black, sides of first four segments brownish-yellow, which color leaves a row of black irregular spots in the middle, largest on the second segment and smallest on the third; also dark oblique spots on lateral margins. Venter yellowish with yellow pubescence; darker on the last three segments. Femora black, brownish at the tip; front tibiæ dark brown, proximal end lighter; second and third tibiæ darker toward the tip; tarsi dark brown. Wings byaline; costal cell light brown; faint clouds in cross-veins and bifurcation of third vein.

The veins of the wings in the moths are usually considered to fall into four main branches. I would, however, consider them to afford only two series; vein 1 of the German Entomologists belonging to the median series, and vein 12 to the sub-costal series of venules. In describing the neuration of Euherrichia (= Herrichia Grote non Staudinger) I have accidentally written “sub-median” for “median.” Generic characters in the Noctuidœ are offered by the disposition of veins 6 to 9 on the fore wings and of the median series on the hind wings, from which vein 5 is sometimes (Spragueia) absent. In addition there is the presence of an accessory cell to be noted on primaries, which is caused by the peculiar position and course of the subcostal series of venules.