(5) Terias damaris, Felder, Plate XXXVII, Fig. 9, ♂; Fig. 10, ♂, under side (Damaris).

Butterfly.—Allied to the preceding species, but readily distinguished from it by the less deeply excised outer border of the fore wing, by the fact that the black outer margin of the secondaries extends inwardly beyond the angulated point of the wing, and by the different color and style of the markings of the lower side. Expanse, 1.35-1.65 inch.

Early Stages.—Unknown.

Damaris occurs in Arizona, and thence ranges south into Venezuela.

(6) Terias westwoodi. Boisduval, Plate XXXVII, Fig. 11, ♂ (Westwood's Yellow).

Butterfly.—Pale yellow or orange-yellow, with a narrow black border on the fore wings, beginning on the costa beyond the middle, and not quite reaching the inner angle. On the under side the wings are pale yellow, immaculate, or at the apex of the fore wing and the outer angle of the hind wing broadly marked with very pale reddish-brown. Expanse, 1.75-2.00 inches.

Early Stages.—Unknown.

Westwood's Yellow occurs in Texas and Arizona, but is not common. It is abundant farther south.

(7) Terias lisa, Boisduval and Leconte, Plate XXXVII, Fig. 13, ♂; Plate II, Fig. 3, larva; Plate V, Fig. 56, chrysalis (The Little Sulphur).

Butterfly.—Allied to the three following species, from which it may at once be distinguished by the absence of the black bar on the inner margin of the fore wings and by the profusely mottled surface of the under side of the hind wings. It is subject to considerable variation, albino females and melanic males being sometimes found, as well as dwarfed specimens of very small size. Expanse, 1.25-1.60 inch.