3S4 LEI'IDOPI'ERA. 



edge of a birch plantation, and seems greatly to prefer any 

 stone or rock to the trunk of a tree. From its glossy appear- 

 ance thereon it is quite conspicuous; and being sluggish and 

 disinclined to move, may be boxed with perfect ease. When 

 rocks are not available it will cling closely to the stems 

 of the lif-atlu'i', wrapping its wings round them. Its llight 

 is at dusk, but probably is rarely observed, the rough 

 mountain sides with outcropping rocks, which it loves, 

 being by no means easy or convenient ])laces for night 

 collecting. 



It appears to have been originally discovered in the Isle of 

 Arran by ilicliard Weaver, in one of his collecting trips to 

 Scotland ; and soon afterwards was found on the Pennine 

 Hills in Lancashire and ^'orkshire by Mr. Edleston. Its range 

 is somewhat restricted here, since it does not seem, like 

 some of the otlit-r mountain s])ecies, to occur on the higher 

 hills of the south- wt-sl ; there is a single record of it in 

 (iloucestershire, but this is doubtful — at any rate it retpiires 

 confirmation — and no records I'xist for Wales or the hills of 

 the Midlands. It is. howcvi-r. ipiite common on the high hills 

 between Oldliani aiul H udderslield. lying in Lancashire and 

 ^'orksllire, has been taken in Delamere Forest, Cheshire, and 

 further north on hills and moors generally, in Westmoreland, 

 t'umberland. Durham, aud Northumberland; alst) in Scot- 

 land in Ixoxburghshire, the I'^diuburgh district, i'erthshire, 

 Aberdeenshire, Kincardineshire, and probably throughout 

 that country in suitable places, extending certainly to the 

 Hebrides and the Orkneys. In L'eland it has been taken 

 casually upon the Hill of Howth, and in the Ivinierick district, 

 Antrim, and Derry ; in the west also on all hills exceeding 

 lOOU feet, and in the Island of Acliill. Abroad its range 

 seems to be somewhat uncertain, init it is found in Lapland, 

 also in l'"ranee, and ap[)arently on the moiuitains of (lermany 

 aud Switzerland. 



