28z LEPIDOPTERA. 



pale brown with a smoky tinge ; hind wings white, faintly 

 dusted with light brown along the margins. 



Not very variable, specimens taken at the Isle of Portland in 

 the collection of Mr. N. M. Richardson are exceedingly pretty, 

 the males especially being of a light bright grey, or whitish- 

 grey, or even chalky-white, with the markings brought much 

 more sharply into notice than is usual. On the other hand, 

 Mr. S. Stevens has a specimen entirely suffused with dark 

 grey, and Mr. L. Prout has taken one nearly black in the Isle 

 of Wight. Mr. Kane says that those found at Wexford are 

 rather strongly marked with black. 



On the wing from the end of August to October. 



Larva rather stout, cylindrical, but tapering slightly 

 behind ; brilliant yellow-green or greenish-yellow ; the head 

 green, freckled with red ; a red unpolished semicircular plate 

 on the back of the second segment ; on the back of each of 

 the other segments is a red diamond, the front part of which, 

 for about a third of its length, is black ; through it runs 

 the pale pink dorsal line edged with red, thus cutting what 

 would be a black triangle into two black wedges pointing 

 forward; subdorsal line black at the beginning of each 

 segment ; spiracles white, placed in black crescents ; the 

 space between them and the subdorsal line thickly freckled 

 and streaked with deep red ; subspiracular stripe pale 

 primrose-yellow, its lower edge softened a little into the 

 ground colour and followed below by a blotch of red or pink 

 on each segment ; prolegs tipped with pink ; ventral surface 

 pale yellowish-green. 



Or, ground colour rather deep reddish-pink on the back and 

 sides, the freckled side-stripe and dorsal diamonds of darker 

 purplish-red, with other details as in the preceding. 



Or, ground colour of the whole surface olive-green, but on 

 the back appeai'ing only at the beginning of each segment as 

 a narrow transverse band in which are visible the pinkish- 

 white dorsal line and the black wedges, the latter much 



