When eggs are obtained early, it is possible to have three generations of the moth during the same year. Thus eggs deposited on May 8 produced caterpillars which fed up quickly and attained the moth state in July. From July eggs some of the caterpillars will outstrip their companions, pupate in September, and appear as moths about a month later. The moth is to be found in May and June, sometimes in July or August, in wood clearings, on moors and rough hillsides, and also in water meadows, etc. It flies at night, is attracted by light, and although it occasionally flies in the sunshine, it is, as a rule, not often seen in the daytime. Occurs throughout the British Isles to the Orkneys. Distribution: Europe, Western and Central Asia, Amurland, Japan, North-west Africa, North America. [Illustration] Pl. 80. 1, 2. RUBY TIGER MOTH. 3, 4, 5, 6, 7. WOOD TIGER MOTH. [Illustration] Pl. 81. 1, 1a. WOOD TIGER: _eggs and caterpillars_. 2, 2a. RUBY TIGER: _caterpillar and cocoon_. {157} THE WOOD TIGER (_Parasemia plantaginis_). On Plate 80 are shown some of the forms of this attractive and somewhat variable species. Figs. 3, 4, are male and female of the typical form found in England. The most usual phase of variation is in the narrowing or widening of the pale yellowish markings of the fore wings, and the black markings on the hind wings; occasionally the yellow or the black increases to such an extent that the fore wings appear to be almost entirely of the one colour or the other. The hind wings range in colour from the normal yellow through orange to red, and through pale shades of yellow to white; on the other hand they are sometimes almost entirely black. The var. _hospita_, Schiff. (Fig. 7), has all the wings white, and although it has been reported from Shropshire, West Durham, the Lake District, etc., it has been chiefly obtained in the Hebrides and in the highlands of Scotland. Only males of this form are known; the females found with them have heavy black markings on the hind wings, almost crowding out the reddish ground colour. The creamy markings of the fore wings are narrow, and the central spot small. The full-grown caterpillar is blackish above with greyish-black warts from which arise tufts of blackish hairs, except on rings four to six, where the hairs and the warts at the base of each tuft are reddish; the black hairs of the hinder tufts are the longest (Plate 81).