(4) =Vanessa antiopa=, Linnæus, Plate I, Fig. 6, ♀; Plate III, Fig. 28, _larva_; Plate IV, Figs. 51, 58, 59, _chrysalis_ (The Mourning-cloak; The Camberwell Beauty).
_Butterfly._--This familiar insect needs no description. It is well known to every boy in the north temperate zone. It is one of the commonest as well as one of the most beautiful species of the tribe. A rare aberration in which the yellow border invades the wing nearly to the middle, obliterating the blue spots, is sometimes found. The author has a fine example of this "freak."
The eggs are laid in clusters upon the twigs of the food-plant in spring (see p. 5, Fig. 11). There are at least two broods in the Northern States. The caterpillars feed on willows, elms, and various species of the genus _Populus_.
_Butterfly._--The wings in their neuration approach closely to the preceding genus, but are not angulate, and the ornamentation of the under side tends to become ocellate, or marked by eye-like spots, and in many of the species is ocellate.
_Egg._--The egg is broadly ovoid, being much like the egg of the genus _Vanessa_.
_Caterpillar._--The caterpillar in its mature form is covered with spines, but these are not relatively as large as in _Vanessa_, and are not as distinctly branching.
_Chrysalis._--The chrysalis approaches in outline the chrysalis of the preceding genus, and is only differentiated by minor structural peculiarities.
The genus includes only a few species, but some of them have a wide range, _Pyrameis cardui_ being almost cosmopolitan, and having a wider distribution than any other known butterfly.
(1) =Pyrameis atalanta=, Linnæus, Plate XLIII, Fig. 4, ♂; Plate III, Fig. 35, _larva_; Plate IV, Figs. 52, 53, 55, _chrysalis_ (The Red Admiral).
This familiar butterfly, which is found throughout North America, Europe, northern Asia, and Africa, needs no description beyond what is furnished in the plates. Expanse, 2.00 inches. The food-plants are _Humulus_, _Boehmeria_, and _Urtica_.
[Illustration FIG. 97.--Neuration of the genus _Pyrameis_.]
(2) =Pyrameis huntera=, Plate I, Fig. 2, ♂; Plate XXXIII, Fig. 6, ♂, _under side_; Plate III, Fig. 34, _larva_; Plate IV, Figs. 54, 63, 64, _chrysalis_ (Hunter's Butterfly).