Methods of setting, and after-manipulation have been fully discussed in "Butterflies of the British Isles." * * * * * {17} PART II. DESCRIPTIONS OF SPECIES. HAWK-MOTHS. About sixty species belonging to this family, scientifically known as the Sphingidæ, are recorded from the Palæarctic region, and of these twenty-seven are found in Europe. About ten only can be considered as true natives of the British Isles; seven others, though found here, are distinctly aliens, and their visits, at least as regards some of them, to our islands, exceedingly irregular. Most of the moths are of large size, many of the caterpillars are of noble proportions, and in both stages they are not difficult to find, if looked for in suitable places and in their proper season. The caterpillars of several kinds, owing to the exposed way in which they feed or rest, are especially noticeable on bush and hedgerow; the chrysalids, although subterranean, are often freely obtained by turning up the soil around trunks of trees, or under plants, upon which the caterpillars feed. THE LIME HAWK-MOTH (_Dilina_ (_Mimas_) _tiliæ_). The four specimens shown on Plate 3 represent the more or less ordinary form of this moth. The pale pinkish grey, or reddish brown, fore wings are sometimes tinged with greenish in the paler forms; the irregular shaped band crossing the {18} central area of the wings is olive green, usually dark, and generally edged with whitish. This band is sometimes entire (typical), but more frequently it is broken about the middle. The outer third of these wings is more or less greenish or mottled with green, and a mark near the tip is whitish.