_Butterfly._--Small butterflies, closely resembling the species of the genus _Phyciodes_ in the neuration of the wings, and only differing from them in the outline of the outer margin of the primaries, which are more or less excavated about the middle. In the style of the markings they differ somewhat widely from the butterflies of the genus _Phyciodes_, notably in the absence of the crescents on the margins of the wings. The wings on the upper side are generally some shade of deep brown or black, marked with spots and bands of white or fulvous, the median band on the hind wings being generally more or less conspicuous. In the pattern of their markings they illustrate a transition from the genus _Phyciodes_ to the genus _Synchloë._ [Illustration FIG. 93.--Neuration of the genus _Eresia_, slightly enlarged.] _Egg._--Hitherto undescribed. _Caterpillar._--Cylindrical, with seven rows of spines, one dorsal, and three lateral on each side; the spines are short, blunt, and armed with short bristles. The head is subcordate, with the vertices rounded. It moults four times. _Chrysalis._--Cylindrical, abdomen stout, head-case short, beveled, nearly square at top, the vertices pyramidal. There are three rows of small tubercles on the dorsal side of the abdomen. The caterpillars so far as known feed upon various _Compositæ_, as _Diclippa_ and _Actinomeris_. The genus, which is somewhat doubtfully separable from _Phyciodes_, and probably possesses only subgeneric value, is well represented in Central and South America. But three species are found in the faunal region of which this book treats. (1) =Eresia frisia=, Poey, Plate XVII, Fig. 42, ♂ (Frisia). _Butterfly._--Upper side reddish-fulvous, clouded with fuscous at the base. On the basal area are waved black lines, separate on the hind wings, more or less blended on the fore wings. The outer border is broadly black. Between this border and the basal third the wing is crossed by irregular black bands, the spaces between which are paler fulvous than the base and the hind wings, those near the outer margin being whitish. These bands are continued broadly across the hind wings. The wings on the under side are fulvous, mottled with dark brown and white, and spotted with conspicuous white spots. The male and the female closely resemble each other. Expanse, 1.40 inch. The early stages are wholly unknown. The only locality within the limits of the United States in which this insect has been found is Key West, in Florida. It is abundant in the Antilles, Mexico, Central and South America. (2) =Eresia texana=, Edwards, Plate XVIII, Fig. 8, ♀; Fig. 9, ♂, _under side_ (The Texan Eresia).