_Butterfly._--This splendid and vigorous butterfly is found from New England and Wisconsin to Patagonia, being very abundant in the tropics, where it congregates in great swarms upon moist places by the side of streams. It haunts in great numbers the orange-groves of the South, and is very fond of flowers. It is rare on the northern limits of its range, though quite common on the coast of New Jersey. Expanse, 2.50 inches. The caterpillar feeds on leguminous plants, but especially upon the different species of _Cassia_. (2) =Catopsilia philea=, Linnæus, Plate XXXIII, Fig. 4, ♂ (The Red-barred Sulphur). _Butterfly._--This is another noble species of this fine genus, which includes some of the showiest insects of the subfamily. It may be readily recognized by the bar of deep orange crossing the cell of the primaries, and by the orange tint on the outer margin of the hind wings. Expanse, 3.00-3.50 inches. _Early Stages._--But little is as yet known of these. The larva feeds on the same kinds of plants as the larva of _C. eubule_. It occurs in Texas, and is said to have also been found in Illinois as a straggler. It is abundant in Mexico, Central America, and southward. (3) =Catopsilia agarithe=, Boisduval, Plate XXXIII, Fig. 1, ♂ (The Large Orange Sulphur). _Butterfly._--About the same size as _C. eubule_, but deep orange on both sides of the wings. The wings of the female are bordered somewhat heavily with brown, and are duller in color than those of the male. Expanse, 2.50-2.75 inches. _Early Stages._--The caterpillar, which resembles that of _eubule_, feeds upon various species of _Cassia_. The chrysalis is also much like that of =eubule=. We need, however, fuller information than that which we possess, drawn, for the most part, from the pages of authors who wrote in the last century. The species occurs in the hot parts of the Gulf States, and is common throughout tropical America. Genus KRICOGONIA, Reakirt _Butterfly._--Medium sized, bright yellow on the upper and lower sides, with some dark markings, especially in the male. The primaries in the male are generally quite strongly falcate. [Illustration FIG. 145.--Neuration of the genus _Kricogonia_.] _Early Stages._--Nothing has, as yet, been satisfactorily ascertained in relation to these. The genus is not large, and is confined to the tropical regions of the New World, being represented in our fauna in the vicinity of the city of Brownsville, in Texas. (1) =Kricogonia lyside=, Godart (form =terissa=, Lucas), Plate XXXIV, Fig. 20, ♂; Fig. 21, ♀ (Lyside).