The caterpillar is obscure greenish, with whitish and rather {201} shining raised spots; there is a black plate on the first ring, and from this three broken yellowish lines run along the back. Head black and glossy. It feeds from October to May on the lichens growing on walls and rocks; during the day it hides in a chamber formed of silk and lichen, which is not easy to detect in dry weather. The moth is out in July and August, and at Eastbourne I have found it in September. It may be found generally on walls, but sometimes on rocks at various places on the coast of Kent, Sussex, Dorset, Devon, and Cornwall; also in the Scilly Isles. Its range, according to Barrett, extends to Bath and Wells, Somersetshire, Marlborough and Chippenham in Wiltshire, and it has also occurred in Gloucestershire. THE TREE-LICHEN BEAUTY (_Bryophila algæ_). The only record of this species in England that I am aware of is that by Mr. Edleston, in the _Intelligencer_ for 1860, p. 11, as follows: "Two specimens of this pretty species (_B. algæ_) were taken in this district last July." The district referred to was Manchester, and the note was written on September 28, 1859. TRIFINÆ. THE TURNIP MOTH (_Agrotis_ (_Euxoa_) _segetum_). The ordinary form of the male and the female is represented on Plate 104. The species is an exceedingly variable one, and Haworth (1803), believing them to be distinct species, gave Latin and English names to several of the different forms. The ground colour in the male ranges from pale whitish or brownish ochreous, with strong markings, to blackish brown, with the markings obscured. The female ranges in colour of {202} fore wings from greyish to blackish. Caterpillar, greyish brown, tinged with ochreous, or sometimes pinkish; a glossy plate on first ring, greyish or brownish; spots glossy, each with a tiny hair; lines rather darker, but often indistinct. It feeds from July to April on various plants, but only attacks the tender stems near the surface of the ground. In fields it is destructive to turnips and swedes, making large cavities in the bulb, which it enters from just above the tap-root. The moth flies in June, and occasionally as a second generation in the autumn. Generally distributed over the British Isles, and often very common. Its range extends throughout nearly the whole of Europe and the greater part of Asia. THE ARCHER'S DART (_Agrotis_ (_Euxoa_) _vestigialis_).