LARENTID^—MEI.A NIP I 'E. <j 5 



margin straight ; colour white or brovvuish-white ; basal 

 blotch, and a slender parallel stripe outside it, grey-black or 

 brown-black ; first line much curved, second line more 

 oblique, much more irregular, placed in deep curves and 

 angles, one of the latter above the middle bearing a strong 

 projecting tooth ; these lines form the margins of a mode- 

 rately broad central band, black or black-brown, mottled 

 with whitish shady lines, and containing the discal spot, 

 which is black, ringed with white ; a broad black or brown- 

 black band lying along the hind margin is partially divided 

 by a slender white subtenninal line or series of white dots ; 

 in the white stripe preceding it is a series of small black 

 dots ; cilia chequered, black and white. Hind wings white 

 thrice barred before the middle with rows of faint grey-brown 

 streaks ; along the hind marginal region is a broad black- 

 brown band, dotted with white ; cilia chequered black and 

 white. Female quite similar. 



Underside very pretty ; shining white with the bands of 

 the upper side deeper black, but more slender ; the hind 

 bauds of all the wings interrupted in the middle, and the 

 central spots black and distinctly visible. Body and legs 

 black, thickly dusted with white. 



The ground colour is rather uncertain, being as already 

 remarked white or brownish-white ; this appears to be in 

 inverse degree to the darkness of the markings. Those 

 specimens found in June on mountain heaths are usually 

 brownish-white, with brown-black markings ; but in the 

 southern portions of Yorkshire, at this season, it occurs in 

 plenty with clear white ground colour and all the markings 

 black; moreover, the partial second generation in August 

 usually consists of specimens equally white, with yet deeper 

 and sharper black markings. There is also casual variation 

 in the width of the bands, the white spaces in some individuals 

 being very broad. Specimens in the collection of the late 

 Mr. i\ J5ond exemplify this strongly. In such the middle 

 dark baud becomes attenuated and sometimes Ijroken, while 



