258 LEPIDOPTERA. 



Underside of the fore wings pale smoky hlack : costa 

 regularly spotted with white. Hind wings smoky white. 

 On the wing at the end of June and in July. 



Larva ratlier stout ; dark dull brown ; bead dark tan 

 colour ; dorsal plate black ; raised dots and feet black. 

 (Gregson.) 



May and early June : on sheep's fescue grass, usually upon 

 rocks, and inhabiting a silken gulley at the root of the 

 grass. 



PrPA robust, dark brown, in the white tubular web in 

 which it has lived, often between the grass root and a 

 stone. (Hodgkinson.) 



The moth, of which I have no knowledge in the living 

 state, is said to be sluggish and unwilling to fly in the day 

 time, at which time it loves to sit on the perpendicular face 

 of a limestone rock. Mr. Home tells me that he found it 

 sitting on palings at 2000 feet above sea level on the hills 

 about Braemar. Confined with us to northern districts, not 

 very scarce in North Lancashire, Westmoreland, and Cumber- 

 land ; also in North Wales, and Anglesea. In Scotland in 

 the Edinburgh district, Kirkcudbright, the Clyde district, 

 Perthshire, and Aberdeenshire : but I find no record in L-eland. 

 Abroad it is said to inhabit the Alps, the Hartz Mountains, 

 also the mountains of Siberia and of the north of Europe ; 

 but Dr. Wocke was of opinion that the insect from those 

 localities, known a&S.'pcnziana, Huh., was distinct from ours. 

 This was confirmed by specimens of *S'. penziana sent from 

 the Alps. 



2. S. colquhounana, Stn. — Expanse f to 1 inch 

 (18-26 mm.). Fore wings long and narrow, grey or slate- 

 grey, with oblique darker notched bands. 



Antennae black-brown ; palpi and head white or grey ; 

 thorax dusky w^hite or grey dusted with black ; abdomen 

 dusky white ; anal tuft pale ochreous. Fore wings long and 



