This species, which is another North-country butterfly, varies so much in its colouring of sober drab or brown, with black eye-spots, that its varieties have been described as distinct species under the names of _C. Polydama_, _Typhon_, and _Iphis_, now, however, all placed together under the name of _Davus_. These variations appear to depend in great measure upon local differences of elevation, latitude, &c. From this excessive variability also it is very difficult to give a clear _general_ description of the markings, though the insect may be distinguished from other British species that approach it in appearance by the obscure yellowish-drab tint of the upper surface, marked with indistinct eye-spots, and more especially by having on the under surface of the hind wings an _irregular_ {110} _whitish_ band across the centre, and outside of this a row of about six clearly defined black eye-spots with white centres, situated each in a pale ochreous ring. The _butterfly_, which appears in June and July, is exclusively met with in the North (including North Wales), and inhabits the moors and marshy heaths, or "mosses," in a great many localities in Scotland and the northern counties. The following are among those recorded:-- SCOTLAND.--Shetland Isles; Isle of Arran; Pentland Hills; Ben Nevis; Ben Lomond, near Oban; Ben More. ENGLAND.--Lake District of Cumberland; Yorkshire; Beverley; Cottingham; Hatfield Chase; Thorne Moor; White Moss, Trafford Moss, Chat Moss, near Manchester; Chartly Park, near Uttoxeter; Delmere Forest, Cheshire; between Stockport and Ashton; near Cromer, in Norfolk; near Glandford Brigg, Lincolnshire. IRELAND.--Donegal mountains. NORTH WALES.--Between Bala and Ffestiniog. Ashdown Forest, in Sussex, has been given as a locality, on doubtful authority, certainly; but from what I have seen and know of that district and its productions, I think it is not at all impossible that _Davus_ may be really found there. We have there, at any rate, the heath-covered, yet swampy, moorlands that the insect loves, and also in plenty the plants one finds most abundant in the northern moorlands; such {111} as Vacciniums, Cotton-grasses, the three common Heaths, &c. &c. with great variety in the elevation, some of the ground lying very high. * * * * * THE SMALL HEATH BUTTERFLY. (_Coenonympha Pamphilus._) (Plate VI. fig. 7.) This is the pretty little tawny-coloured butterfly that mixes with the sportive group of "Blues," Meadow Browns, &c. on heaths, downs, and grassy fields. The general colour of the upper surface is a tawny yellow or buff, shaded with a darker tint of brown at the edges and at the bases of the hind wings. On the under side it may be distinguished from _C. Davus_ by the _absence of the clearly defined black eye-spots_ which the latter has. It is usually much inferior in size to the last.