In Britain, this species has so far only been found on the heaths of Kent, Surrey, Sussex, Hampshire, Dorsetshire, Somersetshire, Berkshire, and Suffolk; in all these counties it is more or less local, but it abounds in some of its haunts. It has been recorded from Hereford, and Edwards states that it occurs rarely in the Malvern district of Worcestershire. [Illustration] 2 Pl. 138. 1. SATIN CARPET: _egg and caterpillar_. 2. SQUARE SPOT: _eggs_. 3. THE ENGRAILED: _caterpillar and chrysalis_. [Illustration] 2 Pl. 139. 1-3. ANNULET. 4, 5. SCOTCH ANNULET. 6, 7. BLACK MOUNTAIN MOTH. {319} THE ANNULET (_Gnophos_ (_Sciadion_) _obscurata_). In a general way, all the grey specimens of this species are referable to the type form _obscurata_, Schiffermuller; the true type, however, appears to be rare in Britain, even if it occurs at all. It is, perhaps, best represented by well-marked dark specimens from limestone districts, or the lighter ones from peaty ground. At Folkestone and in other chalky localities on the Kentish coast, the bulk of the specimens are pale grey inclining to whitish, usually with the black cross lines showing more or less clearly. Sometimes the lines are obscured by heavy freckling (ab. _woodiata_, Prout); not infrequently, at Folkestone chiefly, the inner and outer areas are pale, more or less free of freckling, but the central area, defined by black lines, is densely freckled; this is the banded form (ab. _fasciata_, Prout). A form occurs on the chalk hills at Lewes in Sussex, in which the wings are almost white, without freckling, but with distinct black lines and rings (ab. _calceata_, Staudinger); a modification of this whitish form from Lewes has been described by Prout as ab. _mundata_, "Almost pure whitish, with virtually no markings, excepting the annulets." On heaths in Surrey and Hampshire, and on the mountains of Aberdeen and Perthshire, a blackish form occurs (ab. _obscuriorata_, Prout = _obscuraria_, Hubner, 146); and sometimes specimens are found in which the wings are of "an intense and almost uniform black" (ab. _saturata_, Prout). In Devonshire and Cornwall, the species is darkish grey inclining to brownish (ab. _anthracinaria_, Esper); whilst on the coasts of North Devon and Wales it is of a slaty grey, more or less tinged with brown, and almost without markings; the Welsh specimens are large, and the wings are rather shining (ab. _uniformata_, Prout). A form, which I have not seen, of "a sandy or reddish colour" is referred by Prout (_Trans. City of Lond. Ent. Soc._, 1903, p. 39) to ab. _argillacearia_, Staudinger; it {320} occurs in sandstone localities. (Plate 84, Figs. 1, Folkestone; 2, New Forest; 3, Lewes.)