lo LEPIDOPTERA. 



faiut; another, of fin orange-brown, has the markings absent 

 except at the outer margins, yet is dusted with brown ; a 

 third has the dark stripes of enormous breadth ; but his 

 most astonishing specimen is wholly smooth pale ochreous- 

 butf without a trace of markings. On the other hand a 

 beautiful specimen taken in the County Wicklow, Ireland, 

 by the Rev. J. Bristowe is quite unicolorous dark brown; 

 Mr. Robt. Adkin has a male, taken in Surrey, wholly smooth 

 smoky Dlack-brown, except that the cilia are spotted with 

 paler ; Dr. P. B. Mason has one something similar, but its 

 costal region is deeper black, and one whitish dot only is 

 visible on the fore wings ; specimens approaching to this 

 degree of darkness seem not to be very rare on Cannock 

 Chase and some other exposed heaths. One in the collection 

 of Mr. Percy Bright is very curious, its right hind wing is of 

 this smooth smoky-black, but the rest are quite normal. 

 Another very singular form of this sex is in the collection of 

 Mr. F. N. Pierce, its wings being as narrow as those of a female, 

 and tinged with the same blacker colour. And Mr. Webb 

 possesses a gynandi^ous specimen whereof the right side is 

 female, very dark and small, the left side — male — being 

 ordinary, but the antennas intermediate, liotU shortly pecti- 

 nated, much less so than in an ordinary male. This form 

 seems to be almost unexampled. 



The female varies very greatly in the degree of dusting, some 

 being nearly white and very pretty, others in every possible 

 degree of increase of duskiness to a very dark and clouded 

 shade, yet it does not seem ever to assume the smooth 

 unicolorous dark form in any degree, the stripes being almost 

 always manifest. In the collection of the late Rev. 

 H. Burney was a yellowish-white specimen, devoid of mark- 

 ings except a faint brown shade near the hind margin ; and 

 Mr. Webb has one silvery-grey, without markings, except a 

 slender black submarginal line and the usual dusting ; 

 another in which the stripes are massed together in the inner 

 half of the wing and the outer half is silvery-white ; and a 



