CENOCHROMW.^—A PL A S TA . 159 • 



dull buff ^'itli a powdered appearance, dusted and shaded 

 witli reddish-orange ; no basal line ; first line extremely 

 faint, a mere aggregation of the reddish atoms; second line 

 more distinct, erect, not indented and but little curved, 

 orange-red or purplish-red. shaded off outwardly to a sort of 

 subterminal line of the ground colour, which is equally erect, 

 and nearly parallel ; outside this the hind-marginal region is 

 more thickly dusted with rich purplish orange ; cilia pale 

 buff, shading paler at the tips. Hind wings rather large, 

 rounded a little behind, but the anal angle squared ; pale 

 buff at the base, shading to smooth purplish-orange at the 

 hind margin, and only very faintly banded in the middle by 

 a shade of the same colour ; cilia pale buff. Female rather 

 smaller, the wings not so broad and more narrowly 

 rectangular, and the fore wings somewhat pointed ; body 

 rather thicker but pointed behind ; colour of the wings 

 similar, or else deficient of the orange-red or purplish-red 

 shading. 



Undersides of all the wings orange-ochreous ; costa of 

 the fore wings dusted with brown : discal and central dots 

 obscurely visible, brown ; beyond the middle of each wing is 

 a faint smoky-brown transverse stripe ; hind margins and 

 cilia all tinged with the same colour. Body and legs pale ; 

 buff. ' 



There is considerable variation, as already remarked upon, 

 in tbe amount, or absence, of purple-red dusting on the' 

 wings of the females. -, 



On the wing in May and June, and in a second generation 

 in July and August. 



The Larva is plump, thickest ia the middle, with the . 

 segments distinctly marked ; velvety or pubescent, colour ^ 

 sea-green ; a dotted black line runs down the back ; on each , 

 side above the feet is an undulating yellow line; prolegs of _ 

 the -same colour; head yellowish-brown; body sprinkled 

 with fine raised dots and grey hairs. 



