76 LEPIDOPTERA. 



curved ; anal angle woll formed ; dorsal margin straight ; 

 shining silky-white, softly tinged with pink or purplish- 

 pink, more especially toward the hind margin, also more or 

 less dusted witli grey atoms ; first line only indicated by faint 

 black dots on the nervures ; second line more distinctly so 

 by larger black dots, and unusually straight ; central line or 

 shade an oblique slender gre}^ cloudy stripe curving from the 

 middle of the dorsal margin faintly to the apex of the wing ; 

 <liscal spot a round black dot ; beyond the dotted second 

 lino are two parallel faint cloudy-grey stripes, the second of 

 which occupies the hind margin, and is then edged by a 

 slender black line ; cilia greyish-white with a purple flush. 

 Hind wings distinctly angulated in the middle of the hind 

 margin, similar in colour and dusting to the fore wings ; 

 central spot a black dot ; beyond it are two faintlj- grey- 

 brown transverse lines, hardly parallel ; hind margin dusted 

 with grey ; cilia brownish-white with a purple flush. Female 

 very similar. 



Underside of the fore wings white, closely dusted with 

 brown-grey, most darkly so toward the costa ; discal spot 

 and second line indicated by dots ; hind wings white with 

 markings similar. Body and legs lirownish-white. 



Slightly variable in the degree of pink or puqjlish-pink 

 shading, or of the grey dusting ; in some inland localities, 

 more i)articularly in the New Forest, the latter becomes more 

 pronounced, and the pink or purplish tinge almost or quite 

 disappears. This appears to be a constant local form. In 

 some places on the coast the pink colouring, on the other 

 hand, is intensified, and this form is exceedingly 

 pretty. 



On the wing from tlie end of June to the beginning of 

 August, and occasionally in its most southern localities as a 

 partial second generation rather inferior in size to the first, 

 toward the end of August and in September. This second 

 emergence can also be obtained in confinement by feeding 

 the larvio in a warm place. 



