Now for a description of the butterfly. In general terms, the upper side of the wings of the male is a deep azure-blue, with a delicate terminal black border. On the apical part of the fore-wings the fringes are black, but white and barred with black on the rest of these wings and on the hind-wings. In the female the fore-wings have a broad, blackish outer border, in some examples extending along the costa, while the hind-wings have a blackish costa and a row of dark spots along the outer margin. Usually the ground-color is a lighter blue in the females than in the males. A pale silvery gray, with a silky lustre, is the color of the under side of the wings, which is relieved by a row of spots along the outer margin, each preceded by a crescent, a curved row of elongate spots across the disk of the fore-wings, and several spots on the basal part of the hind-wings, all the markings being of a pale brown color. Violacea, the so-called winter form, has the dark parts and crescents on the under side of the wings quite prominent, but they do not, either in the outer border or in the basal portion, coalesce. Pseudargiolus, the largest of the series, there being but three forms in Pennsylvania, expands one and four-tenths inches. The upper surface of the male usually has a terminal border to the hind-wings of the same shade of blue as is visible on the fore-wings, the middle area of the hind-wings being a little paler than this border on the fore-wings. On the under side of the wings the spots are much smaller than on the preceding form. Neglecta, which resembles Pseudargiolus, and has the spots on the under surface small, is a smaller form, never expanding more than one and one-tenth inches. It is a summer form when there is more than one generation in a season, ranging from Canada, through New England to West Virginia and Georgia, and occurring also in Montana and Nevada. Violacea has a more extended limit, being found in Alaska, British America, Ontario, Quebec, New England to West Virginia, and Colorado, while Pseudargiolus ranges from Wisconsin south to Tennessee, and on the east from Pennsylvania to Georgia. HIBERNATING BUTTERFLIES. Early in March, and often while the snow yet lingers upon the landscape, may be seen flying in and out among the forest-trees, or lazily meandering along some deserted road through a thicket, the beautiful Antiopa. Her rich crimson dress, so dark that it almost seems black, with its buff-colored, sky-dotted border, serves to distinguish her from her no less interesting, but smaller, sisters of the Vanessa family of butterflies. But the Antiopas you then see are generally ragged and shabby, which is not to be wondered at, when it is considered that it is their last year’s dresses they wear, for late in the preceding August they had their being, and all through the autumn had been exposed to a hundred misfortunes or more while seeking their living.