TRIFID^. 269 



times two yellowish dots on the costal margin ; hind margin 

 faintly clouded with brown, and dotted along the extreme 

 edge with dark brown lunules ; cilia pale drab. Hind wings 

 thin, elongated and rather broad ; rounded behind ; pale 

 smoke colour or smoky-white ; more smoky-brown along the 

 hind margin ; whole surface very silky, almost shot with 

 white ; cilia white. Female much smaller, with decidedly 

 narrower fore wings, and the general form of a Miana ; 

 abdomen short and rather stout ; the dots of the first and 

 second transverse lines connected, and the lines consequently 

 distinct, sometimes the space which they enclose so clouded 

 with brown as to form a faint central band in which even 

 the stigmata are obscurely suggested by paler clouds divided 

 by a brownish blotch ; the hind-marginal brown cloud and 

 the paler subterminal line also more complete and noticeable ; 

 hind wings paler at the base. 



Underside of the fore wings smoky-brown with the dorsal 

 margin and tips of the nervures paler ; hind wings white, 

 dusted with purplish-brown along the costal and hind- 

 marginal regions. Body and leg-tufts whitish-brown, legs 

 dark brown, barred with white. 



Variation is mainly on the lines already indicated, in the 

 less or greater shading of brown over the creamy-white sur- 

 face, and in the presence or absence of the brown cloud near 

 the apes. In Ireland the colouring seems sometimes to be 

 intensified to smooth reddish ochreous, and there is also 

 a disposition to larger size, a specimen sent by Mr. D. C. 

 Campbell from Derry being decidedly broader in expanse of 

 wings than English examples. A very beautiful specimen in 

 the collection of Mr. A. Mera, taken by him in Suffolk, is of a 

 lovely pure white with a faint dusting of black ; the usual 

 row of dots constituting the second line ; and the cilia of the 

 fore wings dotted at the base with blackish dusting, and 

 intersected by a double grey shade ; thorax and abdomen 

 white and hind wings nearly so. 



On the wing from the latter part of June till August. 



