The two cross lines on the fore wings of this silky white species (Plate 107, Fig. 9) commence in blackish spots on the front margin; often they are only indicated by series of dots, and are rarely really distinct. Occasionally, a greyish submarginal line or band is present. The darkish green caterpillar has a series of purplish marks on the back; head, inclining to yellowish, and powdered with purplish. It feeds, in June and July, on the leaves of wild cherry and plum, and will eat hawthorn; it may be beaten from its food plant in the daytime. The moth is out in May and June, and shelters in bushes, etc., in woods and hedgerows. During the day it is frequently put up from its hiding-places, but its usual time of flight is the evening, when it is readily seen and not difficult to capture. It is local, and perhaps most frequently met with in those parts of South England where the wild cherry flourishes. Occurs more or less commonly in most of the southern counties, but north of Gloucester, Oxford, and Norfolk it has only been noted from North Lancashire, Westmoreland, and Cumberland. In Wales the late Mr. C. G. Barrett found the moth rare in Pembrokeshire, and there is also a record from Anglesey. The range abroad extends to China, Corea, and Japan. {266} CLOUDED SILVER (_Bapta temerata_). In its silky, white wings this species (Plate 107, Figs. 7 [male], 8 [female]) is similar to the last mentioned. It is, however, rather larger, and there are greyish clouds on each side of the outer cross line, but there are no blackish spots on the front edge of the fore wings. The clouding referred to is heavier and darker in some specimens than in others, but occasionally, chiefly in the female, is almost absent. The green caterpillar, when full grown, is ornamented with brown-bordered reddish spots on the back, but these markings are absent in its earlier stages. The head is paler than the body, and has a reddish spot on each side. It feeds, in July and August, on sloe, plum, and bird cherry in this country, but the continental authors give birch, willow, rose, etc. The moth is out in May and June, and occurs throughout England and Wales, to Cumberland; but it is far more frequent in the south than in the north. Barrett mentions a single specimen from Wigtownshire in Scotland. In Ireland, Kane states that it is abundant at Clonbrock, Merlin Park, and in several other localities in Galway; it is not uncommon at Killarney, Kerry; and a few specimens have been taken at Powerscourt, Wicklow, and Sligo. The range abroad extends to Amurland and Japan. COMMON WHITE WAVE (_Cabera pusaria_).