[Illustration FIG. 114.--Neuration of the genus _Debis_. (After Scudder.)]
_Egg._--Flattened spheroidal, broadly truncated at the base, the surface smooth.
_Caterpillar._--Body long, slender, tapering from the middle; the head cleft, each half being produced upward as a conical horn; the anal segment provided with a pair of horns similar to those of the head, produced longitudinally backward.
_Chrysalis._--Strongly convex dorsally, concave ventrally, with a stout tubercular eminence on the thorax, without any other projecting tubercles or eminences; light green in color.
This genus is large, and is well represented in Asia and the Indo-Malayan region. I cannot see any good ground for generically separating the two species found in North America from their congeners of Asiatic countries, as has been done by some writers.
(1) =Debis portlandia=, Plate XVIII, Fig. 20, ♂; Plate III, Fig. 16, _larva_; Plate IV, Fig. 6, _chrysalis_ (The Pearly Eye).
_Butterfly._--The butterfly, the male of which is well depicted as to its upper side on the plate, does not differ greatly in the sexes. The hind wings on the under side are marked with a series of beautiful ocelli. In the North the insect is single-brooded; in the region of West Virginia and southward it is double-brooded. Expanse, 1.75-2.00 inches.
_Early Stages._--The illustrations give a good idea of the mature larva and the chrysalis. The caterpillar, like most of the _Satyrinæ_, feeds upon grasses.
The range of this pretty insect is extensive, it being found from Maine to the Gulf of Mexico, and westward to the Rocky Mountains.
(2) =Debis creola=, Skinner, Plate XVIII, Fig. 18, ♂; Fig. 19, ♀ (The Creole).
_Butterfly._--Easily distinguished from the preceding species by the elongated patches of dark raised scales upon the fore wings, situated on the interspaces between the median nervules. The female has more yellow upon the upper side of the fore wings than _D. portlandia_. Expanse, 2.25 inches.
_Creola_ ranges from Florida to Mexico along the Gulf.
_Butterfly._--The head is moderately large; the eyes are not prominent, hairy; the antennæ are about half as long as the costa of the fore wing, not distinctly clubbed, gradually thickening toward the extremity. The palpi are slender, compressed, hairy below, with the last joint rather short and pointed. The fore and hind wings are evenly rounded on the outer margin. The costal vein of the fore wing is thickened, but not greatly swollen. The first and second subcostals are emitted well before the end of the cell, the third beyond it, and the fourth and fifth from a common stem, both terminating below the apex. The upper discocellular vein is wanting, and the upper radial, therefore, springs from the upper angle of the cell of the fore wing.