TRJFTD.-E. 3T 



the base, broader l:)eliincl ; costal marsfin straight ; apex 

 sharjily angulated ; hind margin below it slightly hollowed, 

 then faintly rounded, but very little oblique ; dorsal margin 

 nearly straight ; colour very clear pale slate-grey, purplish- 

 grey, or rosy-grey, smooth and shining, and dusted, especially 

 along the costal region, with white ; basal line only indicated 

 by two deep black dots between nervures ; first line also in- 

 dicated by deep black dots or spots three in number, extend- 

 ing from the costa half way across the wing, the middle one 

 expanded into a black or red-black triangular blotch in the 

 discal cell ; remainder of the first line whitish, but very faint ; 

 second line oblique, nearly straight, whitish, edged on each 

 side with grey ; subterminal line a very faint undulating 

 whitish shade edged inwardly with grey ; orbiculai* stigma 

 large, rhomboidal, oblique, pale grey, almost extending to 

 the costa and edged on one side by the black or red-black 

 triangular blotch ; reniform stigma also large and somewhat 

 rhomboidal, pale grey ; both are very indistinct, but are 

 divided by a narrow deep-black or red-black angulated spot ; 

 this with the black spots attached to the first and basal lines 

 are the only conspicuous markings ; cilia pale grey with a 

 yellowish basal line. Hind wings pure clear white, cilia 

 similar. Antennao of the female simple ; nervures and costal 

 half of the hind wings faintly tinged and dusted with pale 

 brown ; otherwise quite similar. 



Underside of the fore wings pale smoky-grey, paler toward 

 the hind margin, and with a slender pale costal line ; discal 

 cell filled with rather short downy raised scales ; reniform 

 stigma faintly visible, darker grey ; beyond it is a straight, 

 transverse, faint grey bar ; hind wings white with light 

 brown nervures ; body pale purplish-grey, legs and leg-tufts 

 reddish-grey. 



Usually very constant in colour and markings, but subject 

 to local or climatal variations in colour. Specimens from 

 Ireland and from the West of England are frequently tinged 

 with a bright rosy pink beyond and below the two stigmata 



