248 LEPIDOPTERA. 



on each side, and each notch surmounted by a dense tuft of 

 fine 1)ristles resembling small pectinations ; between these 

 thickly ciliated, pale brown ; palpi minute, brown; head and 

 thorax smooth, silky, pale grey-brown dusted with white ; 

 abdomen small and slender, reddish-brown, each segment 

 edged with white scales ; anal tuft tipped with white. Fore 

 wings elongated ; the costa scarcely at all arched ; except 

 towards the apex, which is suddenly rounded; hind margin 

 very oblique and as long as the dorsal, both being gently 

 curved and fully ciliated ; colour pale grey, or whitish-grey, 

 dusted with brown ; first line faintly irregular, and notched, 

 smoky-black, edged inside by a whitish shade; second line 

 very oblique but sharjDly bent back to the costa, smoky- 

 black, sleuder, formed entirely of small crescents with sharp 

 blackened points, edged outside with a silvery-white stripe 

 which forms a white cloud on the costa ; from the bend of 

 the second line an irregular black or brown line runs into 

 the apex of the wing ; discal spot elongated, black ; costal 

 region dusted with yellow-brown, more decidedly so at the 

 apex ; hind margin clouded with grey, and faintly dotted 

 with black ; cilia glossy, rather long, pale grey mixed with 

 white. Hind wings elongated, rounded behind, very thin 

 and silky, white ; central spot round, obscurely black ; 

 beyond it is a faint indication of a bent smoky-black trans- 

 verse line ; cilia white mixed with grey. Female quite 

 wingless, antennae simple, whitish-brown ; head purple- 

 brown ; thorax and abdomen glossy, together ovate, yellow- 

 brown ; anal tuft suddenly large and conspicuous, very 

 dense, olive-brown. Legs reddish-brown. 



Undersides of all the wings of the male silky whitish-grey, 

 the discal spots, and following lines, faintly reproduced in 

 grey. Body and legs pale brown. 



Usually very constant in colour and markings, only differ- 

 ing a little in their shades of brown or grey, and in their 

 intensity. In Yorkshire blacker specimens are obtained, 

 either wholly suffused with darker colour, or having the 



