In the Neotropical Region we are confronted by swarms of butterflies belonging to the _Ithomiinæ_, the _Heliconiinæ_, and the _Acræinæ_, all of which are known to be protected species, and which are mimicked by other species among the butterflies and moths of the region which they frequent. A naturalist familiar with the characteristics of the butterfly fauna of South America can at a glance determine whether a collection placed before him is from that country or not, merely by his knowledge of the peculiar coloration which is characteristic of the lepidoptera of the region. The most brilliant butterflies of the neotropical fauna are the _Morphos_, glorious insects, the under side of their wings marked with eye-like spots, the upper side resplendent in varying tints of iridescent blue. In the Nearctic Region there is a remarkable development of the genera _Argynnis_, _Melitæa_, and _Phyciodes_. There are also a great many species of the _Satyrinæ_ and of the _Hesperiidæ_, or "skippers." The genus _Colias_ is also well represented. The Nearctic Region extends southwardly into northern Mexico, at high elevations, and is even continued along the chain of the Andes, and there are species which are found in the vicinity of San Francisco which occur in Chili and Patagonia. In fact, when we get to the southern extremity both of Africa and of South America we find certain genera characteristic of the north temperate zone, or closely allied to them, well represented. Genus GRAPTA, Kirby (The Angle-Wings) _Butterfly._--Medium-sized or small, characterized by the more or less deeply excavated inner and outer margins of the fore wings, the tail-like projection of the hind wings at the extremity of the third median nervule, the closed cell of the same wings, and the thick squamation of the palpi on the under side, while on the sides and tops of the palpi there are but few scales. They are tawny on the upper side, spotted and bordered with black; on the under side mimicking the bark of trees and dead leaves, often with a c-shaped silvery spot on the hind wings. The insects hibernate in the butterfly form in hollow trees and other hiding-places. [Illustration FIG. 95.--Neuration of the genus _Grapta_.] _Egg._--The eggs are taller than broad, tapering upward from the base. The summit is broad and flat. The sides are marked by a few equidistant narrow longitudinal ribs, which increase in height to the top. A few delicate cross-lines are interwoven between these ribs. They are laid in clusters or in short string-like series (see p. 5, Fig. 10). _Caterpillar._--The head is somewhat quadrate in outline, the body cylindrical, adorned with rows of branching spines (see Plate III, Figs. 23, 27, 31-33, 38).