_The Cream-spot Tiger_ (_Arctia villica_) There is yet another Tiger--the Cream-spot--too beautiful and too common to be excluded from our list. It is represented on Plate X (fig. 4); and, like the others of its genus, is so boldly marked that mistaken identity is impossible. It is a very sluggish moth, more often seen at rest than on the wing, and will suffer itself to be roughly handled without making any attempt to escape. The caterpillar may be observed on sunny banks, generally feeding on chickweed (_Stellaria media_) but sometimes on various other low-growing weeds, including the dock and the dandelion. Its colour is black, with red head and legs, and its body is covered with long brown hairs. It commences to feed in the autumn, hybernates throughout the winter, and is full grown in May, towards the end of which month it changes to a black chrysalis within a light silken web. The perfect insect appears in June. _The Buff Ermine_ (_Spilosoma lubricipeda_) The _Cheloniidae_ also include three moths that are popularly known as the Ermines, two of which--the Buff and the White--are exceedingly common, and are among the constant visitors to our gardens during June and July. [Illustration: FIG. 114.--THE BUFF ERMINE.] The Buff Ermine has all four wings of a buff or ochreous tint, and spotted with black as here represented. The caterpillar is whitish, with a white line down the middle of the back, and its body is covered with long light brown hairs. It feeds on the dock (_Rumex_) and many other low-growing plants during August and September, and spends the winter in the chrysalis state, lying within a loose cocoon on the surface of the ground. [Illustration: FIG. 115.--THE WHITE ERMINE.] _The White Ermine_ (_Spilosoma Menthastri_) In this species the wings are of a pale cream colour, and the dots of the fore wings are more uniformly distributed than in the last. Its habits and life history closely correspond with those of _Lubricipeda_, and its larva may be found feeding on the same plants. This latter may be distinguished from the caterpillar of the last species by the dark brown or black colour of the body, and the presence of an orange line down the back. It is covered with long brown hairs. Family--HEPIALIDAE The five species which compose this family are known as the Swifts, a title which they have earned by their rather rapid flight. Their wings are narrow, and the antennae very short. In the larval state they are long, naked and unsightly grubs, that live under the surface of the ground and feed on the roots of plants. The chrysalides are armed with short spines projecting from the segments. _The Ghost Swift_ (_Hepialus Humuli_)