ic6 LEPinOPTERA. 



i^rey-bniwn. diviiled by white cloiidiiig or lines : first line 

 nearly erect, curved, and a little sinuous ; second placed at 

 ■A considerable distance, rather more oblique and sinuous, 

 with a large flattened, or double, outward projection ; these 

 lines forming the margins of a very broad blue-black or 

 slate-black central liand, faintly stippled with pale slate or 

 whitish-grey lines, and containing a black discal dot ; beyond 

 this baud is a small blue-black cloud on the costa, a faint 

 smoky cloud at the apex, a larger cloud of smoky-black 

 above the middle of the hind margin, and a parallel series of 

 very faint grey rippled transverse lines, on which sometimes 

 the white subteriuinal line is noticeable; cilia smoky white. 

 Hind wings elongated, rounded behind ; grejish-wlute ; faintly 

 shaded with grey to the middle, and twice slenderly striped 

 with pale brown near the hind margin ; cilia brownish-white. 

 Temale similar. 



Underside of the fore wings grey-brown with a narrow 

 divided sinuous white stripe beyond the middle, and faint 

 traces of a dotted white line close to the hind margin. 

 Hind wings white, clouded almost all over with faint grey 

 transver.'ie lines, but a broad white stripe lies beyond the 

 middle. liody and legs whitish-grej' ; tibise dark grey, 

 li.'irred with white. 



Variable in tiie depth of colour of the central baud, which 

 is often mottled with rippling paler lines, but sometimes is 

 of a deep and intense uniform slate black. Also in the 

 ground colour, wliicli in the chalk districts of Kent, Sussex. 

 :iud the Isle of Wight, on the oolite of Portland, and in South 

 Devon, is pure, clear, chalky white, often having the central 

 b md narrower or the clouding of the hind margin obliterated 

 tn allow of the extension of this whiteness. On the sandy 

 districts of the east coast of Ireland the ground colour is, on 

 the contrary, tinged with dull yellowish-grey or yellowish- 

 brown : and in Wales and the more northern districts more 

 clouded with faint grey. In the collection of Mr. G. T. 

 Porritt is a specimen taken in South Devon which has 



