gS LEPIDOPTERA. 



to orange-red on the costa, and to orange-j-ellow on the 

 dorsal margin ; longitudinal stripe pearly white, narrow at 

 the base, and ver^y slowly broadening, obliquely cut oti'in the 

 middle by a rather broad black-red bar, and again toward 

 the hind margin by a red-brown bar, so as to form three 

 sections, the third a mere white streak ; just beyond this is 

 a row of black marginal dots ; cilia shining grey-brown, 

 intersected with darker. Hind wings ample; the hind 

 margin rounded, but rather indented below the apex ; 

 shining white, with a faint smoky tint ; cilia white. 

 Female similar. 



Underside of the fore wings pale orange-5-ellow, with a 

 large central smoky cloud. Hind wings white, with a faint 

 smoke-coloured transverse submarginal stripe. Body and 

 legs white. 



On the wing from the end of June till August. 



Larva and Plpa not with any certainty known. 



This species is said to sit upon grasses by day, and to be 

 easily induced to fly ; but I have no personal knowledge of 

 it. First recognized and recorded in these Islands in the 

 year 18GS, a specimen having been taken, sitting on grass, 

 near Aberdeen by Mr. N. E. Brown ; a second specimen was 

 then recognized as having been taken some years earlier, in 

 Scotland, by ilr. Thomas Boyd. Soon afterwards it was 

 taken in Perthshire, and seems gradually in subsequent 

 years to have increased somew^hat in numbers, but so far as 

 I am aware is still confined to the mountain valleys of those 

 two counties, about Braemar and Glen Tilt, and only taken 

 there in very small numbers. Abroad it is found principally 

 in mountain districts in Central and Northern Europe, Italy, 

 and Armenia ; and in North America has been taken in Nova 

 Scotia and in Maine. 



IG. C.perlelluSj.S'rt)/). — Expanse | to 1^ inch (20-28 mm.). 

 Fore wings rather broadly elongate, pearly j-ellowish-white, 



