TRIFIDAi. 255 



and softly dusted and clouded with paler grey; markings 

 so faint as often to be scarcely perceptible ; basal line 

 excessively obscure, limited to two small black spots in the 

 costal half, and both edged externally with pale grey ; first 

 line rather perpendicular, broad, waved, but only faintly 

 indicated in pale grey; second line rarely visible, when 

 perceptible a curved pale grey thread, followed at some 

 distance by a parallel row of whitish-grey dots placed on 

 nervures, which here are blackish ; subterminal line a faint 

 series of irregular, undulating, pale grey clouds; stigmata 

 hardly perceptible, but the space between the upper two is 

 rather pale; cilia shining and changeable according to the 

 light, dark grey dashed with blacker and tipped with a 

 whiter shade. Hind wings rather narrow, rounded, dark 

 smoky-grey, paler toward the base ; nervures dark brown ; 

 cilia dusky white barred with cloudy black. Female quite 

 similar, except that the abdomen is stouter and tapers off to 

 a sharp elongated point. 



Underside of the fore wings smoke-colour, the nervures 

 thickened and dusted with black ; a bluish sheen lies along 

 the dorsal margin ; cilia grey-black, with a paler line along 

 their base. Hind wings also smoke colour, paler toward the 

 dorsal margin ; cilia as in the fore wings. Body and legs 

 smoky-grey ; front tibiae darker and barred with yellowish- 

 white ; leg tufts of the colour of the body. 



But very slightly variable here, though in some individuals 

 there is a tendency to rather paler, more bluish-grey 

 clouding over the base and middle area of the fore wings, a 

 broad bar of the dark colouring remaining between and a 

 roughly triangular dark spot near the middle of the costal 

 margin ; sometimes also a whitish-grey dash appears in the 

 middle of the base. But it must be borne in mind that the 

 form found in these islands, and which I have described, is 

 not that which is typical of the species abroad, the latter 

 being of a far brighter and lighter bluish-slate, mottled and 

 clouded with darker, but having round the base and broadly 



