QUADRIF1D31. 249 



series of black-brown crescents marking the crenulations ; 

 the long fine hair-scales of the dorsal margin are also white. 

 Female rather stouter, otherwise accurately similar. 



Underside of the fore wings white at the base and on the 

 costa, toward the dorsal margin more pearly-white ; beyond 

 this is a very broad, oblique, cloudy, smoky-black band uniting 

 upon the dorsal margin with another, much more perpendi- 

 cular and deeper black, transverse band ; beyond a broad 

 white stripe is another smoky-black band which shades off 

 gradually to a blackish dusting upon the white hind margin. 

 This is sharply edged by a black slender undulating line 

 which throws in points from its inner curves, and others- 

 outwards into the white cilia from the outer curves. Hind 

 wings shining white with a large black central spot, and 

 a transverse black curved stripe beyond it ; towards the 

 hind margin is another, broader but more smoky-black band 

 shading off to white along the hind margin and apex ; 

 marginal line and cilia as in the fore wings. Body and legs 

 yellowish-white, the tufts upon the femora very large ; knees 

 also tufted, pale grey in front ; tibiae banded with black. 



On the wing in August, September, and even October. 



Larva nearly three inches in length, slender, head broader 

 than the second but a little narrower than the third segment, 

 flattened in front, and slightly notched on the crown ; body 

 of fairly uniform width, but segments 7, 8, 9 and 10 the 

 broadest, undersurface flattened ; on the back of the ninth 

 segment is a small hump, and a smaller ridge at the back of 

 the twelfth ; segments clearly denned ; dorsal region smooth 

 and without hairs, but a rather dense row of short hairs, 

 pointing downwards, below the spiracles, divides the dorsal 

 from the ventral area. Dorsal area putty colour with a 

 strong greenish tinge, and freckled, particularly on the hinder 

 part of each segment, with brown atoms; head pale pink, 

 edged at the back with a conspicuous band of dark damson- 

 plum colour ; this band narrows off to a point on each side 



