The chrysalis is described by Buckler as being "little more than three-eighths of an inch in length, rather thick in proportion, being less dumpy in form than _hyperanthus_, but more so than _blandina_. The colour of the back of the thorax and wing cases is a light green, rather glaucous; the abdomen a pale drab or dirty whitish; a dark brown dorsal streak is conspicuous on the thorax, and there is the faintest possible indication of its being continued as a stripe along the abdomen. The eye-, trunk-, antenna-, and leg-cases are margined with dark brown, and the wing nervures are indicated by the same colours." [Illustration: _Pl._ 74. =Marbled White.= _Eggs enlarged, caterpillar and chrysalis._] [Illustration: _Pl._ 75. =Marbled White.= 1, 2, 4 _male_; 3, 5, 6 _female_.] As is indicated by its English name, this interesting little butterfly only frequents high ground, and is rarely found below about 1500 feet. All its English localities are in the lake district of Cumberland and Westmoreland. It seems to like boggy ground, and in such places on Gable Hill, Red Skrees, and at Langdale Pikes, among others, it is not uncommon. Previous to 1809 the species was unknown to occur in Britain, but in June of that year specimens were captured by Mr. T. Stothard on the mountains at Ambleside. Haworth, in 1812, referred to these specimens as from Scotland, but the butterfly was not taken in that country until 1844, when it was discovered by Mr. R. Weaver in Perthshire. It is now known to occur, sometimes in abundance, on Ben Nevis and other adjacent hills, also in suitable spots and the proper elevation around Lochs Rannoch and Vennachar, as well as in the Tay district and Argyleshire. In Ireland it was taken by Mr. E. Birchall, in June, 1854, in a grassy hollow about halfway up the Westport side of Croagh Patrick. About five years ago Mr. W.F. de Vismes Kane met with the butterfly on Nephin, Mayo, and he mentioned a specimen believed to have been taken on the hilly slopes on the eastern shores of Lake Gill, Sligo. Abroad the species is found in mountainous parts of South Germany, Switzerland, France, North and Central Italy. The typical form, _epiphron_, is more especially obtained in the Hartz and Alsatian Mountains, Silesia, Hungary, and Bulgaria. The Scotch Argus (_Erebia æthiops_ = _blandina_).