The caterpillar is very dark lead colour, nearly black; and is covered with little wart-like projections, from each of which protrudes a short black hair. There is a broad yellow broken line down the back, and two others on the sides. It feeds on the hound's-tongue (_Cynoglossum officinale_) and many other low-growing plants, hybernates through the winter, and is fully grown in May. Like the other members of this family, it spins a light silken cocoon, in which the hairs from its body are interwoven. Family--CHELONIIDAE _The Wood Tiger_ (_Nemeophila Plantaginis_) The _Cheloniidae_ are popularly known as the Tigers--a title suggested by the tiger-like colouring of some of the prominent species. They differ from the Scarlet Tiger and the other members of the _Eucheliidae_ in that the males have ciliated or fringed antennae. The larvae, too, are more densely covered with hair. The Wood Tiger (fig. 2, Plate X) is a beautiful insect, somewhat variable in its markings, but so conspicuously coloured that our illustration cannot fail to lead to its identification. It may be found commonly among the undergrowth of our southern woods during May and June. The caterpillar is dark brown or brownish black, covered with little hair-bearing warts. The hairs are long and black on the foremost and hind segments, but shorter and of a brown colour on the middle of the body. It issues from the egg in September, feeds for a week or two on the leaves of violets (_Viola canina_ and _V. odorata_), heartsease (_V. tricolor_), plantain (_Plantago_), or groundsel (_Senecio vulgaris_), and then hybernates till the following March. It is fully grown in May, and then spins a light cocoon, with which its hairs are interwoven, among the leaves of its food plant. _The Tiger_ (_Arctia caia_) This splendid moth is exceedingly variable in its colour and markings, but its usual appearance corresponds closely with that of the illustration on Plate X (fig. 3). In some specimens the cream colour almost entirely covers the fore wings, while in others all four of the wings are completely covered with shades of brown. This insect is probably known to all my readers, for it is abundant everywhere. The larva is as well known as the perfect insect. It is a kind of universal feeder, partaking readily of almost every low-growing plant, with perhaps a special partiality for dead nettles (_Lamium album_ and _L. purpureum_). It feeds also on the lime tree (_Tilia vulgaris_), and is commonly met with on apple trees and on the various plants of our flower beds. The young caterpillar makes its appearance in the autumn, and hybernates after feeding for two or three weeks only. It is full grown in June, when it spins a silken cocoon, and changes to a shiny black chrysalis. The ground colour of the larva is black, but it is covered all over with long hairs, those down the middle of the back being grey, and the others brown. This familiar larva is known popularly as the Woolly Bear.