Tcjo LEPIDOPTERA. 



dashed with white. Hind wings broad and rounded ; the 

 hind margin undulating and faintly protruded in the middle ; 

 whitish-grey, dusted with dark grey ; near the base a partial 

 black-grey transverse slender stripe commences upon the 

 dorsal margin ; in the middle is another, very slender but 

 duplicated and longer ; beyond this the sub-marginal region 

 is broadly clouded with dark grey in which meanders an 

 irregular angulated white line ; cilia grey dashed with white. 

 Female very similar, hardly stouter ; but often with the 

 p-round colour whiter and the transverse lines more distinct. 



o 



Underside of the fore wings pale grey-brown, with an 

 angulated cloudy black transverse stripe just before the 

 middle, and a more curved one beyond. Hind wings dusky 

 white, dusted with grey-brown ; a complete curved dark grey 

 transverse stripe lies near the base, and another, more slender 

 and indented, just beyond the middle ; central spot a black 

 dot. Body and legs pale grey-brown. 



Variable in the intensity of the dark grey dusting and 

 clouding, a dark cloud being often visible outside the middle 

 of the second line, and frequently, by the absence of some 

 portion of the dark colour, two similar clouds near the hind 

 margin. Still greater uncertainty exists with regard to the 

 transverse lines, the first and central line being often obscure 

 or obliterated except toward the costa, or the first remains 

 and the central is partially absent ; or all are clear, slender 

 throughout, and distinct ; or, on the other hand, each one is 

 thickened on the costa into a blank roughly triangular spot ; 

 more rarely the central line with its costal spot is obliterated, 

 the spots of the other lines at the same time being exagge- 

 rated. In Dr. P. B. Mason's collection is an exceedingly 

 pretty specimen, of a clear neat white, with all the lines 

 sharply black, and the margins all spotted with grey-black. 

 iSpecimens in Ireland are also sometimes of a particularly 

 white tint. A specimen taken in the New Forest, and in Mr. 

 Percy Bright's collection, has the outer half of the fore and 

 hind wings much suffused with smoky-black; Derbyshire 



