2 Pl. 52.
1.Mallow: caterpillar.
2.Shaded Broad-bar: caterpillar.
3.Chalk Carpet: caterpillar.

2 Pl. 53.
1, 2, 3.Birch Mocha. 4, 5.Dingy Mocha. 6, 9.The Mocha.
7, 8.False Mocha. 10-12.Maiden's Blush. 13, 14.Clay Triple-lines.

HYDRIOMENINÆ.
The Vestal (Sterrha sacraria).

The fore wings are pale yellow inclining to ochreous, and the front edge is more or less tinged with the same colour as that of the oblique stripe from the tips of the wings to the middle of the inner margin. In the type, this stripe is purplish-brown, but in ab. labda, Cramer, it is crimson, and in ab. atrifasciaria, Stefan, it is blackish. In ab. sanguinaria, Esper, the ground colour is pinkish. The hind wings are always white. (Plate [54], Figs. 1 and 2.)

From 1857, in which year the first specimen recorded as British was captured in September at Plymouth, to 1874, one or more examples of this interesting migrant seem to have occurred during the autumns of most years, in some part of the British Isles, but chiefly in the South of England. The years in which it was apparently unrecorded were 1860, 1861, 1870, 1872, and 1873. Since 1874 there have been very few records. In 1879 a male specimen was taken at Chingford, Essex, August 17th, and a female (ova obtained) on September 1st; a specimen occurred at Christchurch, Hants, October, 1893; a male was obtained in the Isle of Purbeck, Dorset, September, 1895, and one was secured at Timoleague, Co. Cork, in August, 1898; one was accounted for at Malvern, Worcestershire, in August, 1901; a female in fine condition was captured, as it flew in the sunshine over a Cambridgeshire meadow, in the autumn of 1906. Mr. H. M. Edelsten obtained a male specimen in South Devon, on September 12, 1908. The largest number of specimens appears to have been recorded in 1867, when nearly thirty were secured, and of these four were taken in May in the Isle of Wight, where also two females were captured on

August 14th and 16th, and one specimen on September 3rd. Six or seven occurred during August in Lancashire, and three in Perthshire, also in August.