The caterpillar is pale ochreous with a pinkish tinge; the central line is greyish brown and the spiracles black; head reddish brown marked with darker. It feeds on the roots of seaside campion (_Silene maritima_), July to September. The moth flies from June to August. Like most of the species in this genus, it does not care for the collector's sugar, and except {248} that an occasional specimen may be found resting on the rocks, the moths must be netted as they fly at dusk to the flowers of _Silene_. Staudinger considers that var. _barrettii_ is identical with var. _argillacea_, Hübn. THE GREY (_Dianthoecia cæsia_). The obscurely marked slate grey insect shown on Plate 124, Fig. 5, was first found at Tramore, Ireland, and in the Isle of Man about the same year (1866 or 1867). Kane mentions that he has found the insect at Tramore, and also in eleven other localities on the rocky coast line of the South of Ireland, from Hook Point to Dingle Bay. Our form of the species, var. _manani_, Gregson, differs from the greyish blue continental type in its darker coloration, and this is intensified in the south-west corner of Ireland where specimens of a uniform bluish black occur. The caterpillar is pale ochreous brown minutely freckled with darker; the lines on the back are blackish, but indistinct; usual dots margined with black; head pale brown, marked with darker. It feeds on the buds, flowers, and seeds of campions (_Silene maritima_ and _S. inflata_) from June to August. The moth flies in June, July, and early August, and may be taken, like the last species, at the flowers of the campions growing on the rocks in its seaside haunts. THE MARBLED CORONET (_Dianthoecia conspersa_). Three forms of this locally variable species are shown on Plate 123. Fig. 6 represents the typical form occurring generally in England, but in North Devonshire, on the coast, specimens are found closely approaching the Isle of Lewis form (Fig. 7), whilst others from that district agree in the blackish ground colour with specimens from Ireland. A still darker {249} race occurs in the Shetland Isles, and chiefly on the east coasts, whence came the specimen depicted (Fig. 8). On the western sides of the Shetlands, Mr. McArthur found the species to be rather more typical as a whole, although some specimens approached the darker eastern form. The dark Shetland race has been named var. _hethlandica_ by Staudinger, and the form with the white markings yellowish tinged is var. _ochrea_, Gregson.