Only three British examples seem to be known; two of these were captured in the Isle of Wight, 1859 and 1876, and the third occurred in the lighthouse at Cromer in 1875. The range abroad is Central and Southern Europe, Western and Central Asia and India. THE TRIPLE-SPOTTED CLAY (_Noctua ditrapezium_). The ground colour of the fore wings of this moth ranges from pinkish brown through pale reddish brown to a purplish grey brown. The specimen shown on Plate 110, Fig. 9 [male] is of the pinkish brown form from Tilgate Forest in Sussex. In a series bred from caterpillars obtained at Hampstead, North-west London, the bulk of the males are pale reddish brown, and the females purplish brown; one male, however, is as dark as the females. Caterpillar, purplish brown, mottled above with dark brown; a thin white line, interrupted with black, along the middle of the back, and a row of black marks on each side; on the sides are oblique blackish marks, with the white spiracles showing distinct at their lower ends. Head pale shining brown, the cheeks marked with darker brown. Feeds on dandelion, dock, chickweed, primrose, and other low plants; also on bramble and sallow, and in the spring on the young leaves of birch. September to May (Plate 111, Fig. 2). The moth flies, in and around woods, in July. It is local and not always common, but has been found in the north-west and south-west districts of London, Kent, Surrey, Sussex, Hampshire, Dorsetshire, Devon, Wales (Swansea and Barmouth), and Norfolk (Cromer). It occurs in Scotland (Perthshire), and {223} two specimens have been recorded from Ireland. Its range extends to Siberia and Amurland. THE DOUBLE SQUARE-SPOT (_Noctua triangulum_). This species (Plate 113, Fig. 1) is usually pale brown, more or less tinged with reddish, but some specimens are of a rather darker hue, and others inclined to greyish. The conspicuous marks in the discal cell, usually black or blackish, are sometimes pale or dark reddish brown. The moth flies in June and July, and occurs in woods or well-timbered districts throughout England (except in Somerset, Dorset, and westward), Wales, Scotland (mainland), and Ireland. THE SQUARE-SPOTTED CLAY (_Noctua stigmatica_). As will be seen from its portrait (Plate 113, Fig. 2), this moth, although darker in colour, is marked somewhat similarly to the last referred to. It should be noted, however, that the basal line is less distinct; the submarginal line is inwardly shaded with blackish, and there is no blackish spot at its costal extremity. The fore wings are sometimes pale reddish brown, and sometimes almost blackish. The caterpillar, which is ochreous, or brownish, is somewhat similar in marking to that of _A. ditrapezium_, and feeds on dandelion, dock, chickweed, plantain, sallow, etc. In confinement it is said to eat sliced carrot or potato, and, if kept warm, may be induced to feed up and attain the moth state early in the year.