The caterpillar is of somewhat stoutish build, and reddish brown in colour; three darker lines along the back, and yellow stripe low down along the sides, the latter edged above with black on the front three rings, and blotched with pinkish on the middle rings; the head is rather paler than the body, and the dots on the latter are yellow. It feeds on cowberry (_Vaccinium vitis-idaea_) and cranberry (_V. oxycoccos_), and seems to have a preference for the flowers of these plants: April to June. The moth is out in July and August among the _Vaccinium_ in its swampy haunts on the heaths and moors of the north of England, and Scotland, even to the Shetlands. McArthur took a specimen in the Isle of Lewis in 1901. It also occurs in Ireland. In England it does not seem to have been noted south of Staffordshire. The range abroad extends to Eastern Siberia and Amurland. THE STREAK (_Chesias spartiata_). The most striking features of this shining brownish coloured species are the oval-shaped marks on the disk of the fore wings, and the long whitish streak running to the tips of the wings. (Plate 57, Figs. 3 [male], 4 [female].) The long caterpillar (Plate 56, Fig. 2) is deep green, with a darker line along the middle of the back, and whitish lines along the sides and the under surface; the spiracles are reddish, encircled with black, and the head is flecked with brown. It feeds in the spring on broom (_Cytisus scoparius_). [Illustration] 2 Pl. 56. 1, 1a. BROOM-TIP: _caterpillar and chrysalis_. 2, 2a. STREAK: _egg (enlarged) and caterpillar_. [Illustration] 2 Pl. 57. 1, 2. THE BROOM-TIP. 3, 4. THE STREAK. 5, 6. BARRED TOOTH-STRIPED. 7, 8. EARLY TOOTH-STRIPED. 9, 10. THE SERAPHIM. {151} The moth is out in September and October, and secretes itself during the day, but may be found at night flying about the broom bushes for a short time, and later on it sits upon the twigs. It occurs in almost every part of the British Isles where the food plant of the caterpillar is well established. BROOM-TIP (_Chesias rufata_). A noticeable character in this glossy, greyish moth (Plate 57, Figs. 1 [male], 2 [female]) is the black mark on the upper part of the second cross line of the fore wings (which probably suggested the English name "Chevron" given to the species by Donovan); following the mark is a reddish or ochreous flush, extending to the tips of the wings. The long, green caterpillar inclines to bluish above, and to paler green beneath; a darker line along the middle of the back, then a slender whitish line edged with darker green, and between this and the white spiracular line there is another slender whitish line. It feeds, in August and September, on broom; when full grown it enters the earth, and there turns to a reddish brown chrysalis, the wing cases of which are greenish. I am indebted to Mr. A. J. Scollick for the caterpillar and chrysalis figured on Plate 56, Figs. 1, 1a.