I50 LEPIDOPTERA. 



nervures dark red-brown ; first line rather curved and com- 

 posed of a series of yellowish clouds ; second line similarly 

 composed, arising on the middle of the dorsal margin, making 

 a wide sweep outward and a bold curve back to the costa ; 

 beyond this is a sub-marginal row of more obscure yellowish 

 clouds ; cilia dark brown regularly interrupted with yellowish. 

 Hind wings rather pointed, but smoothly rounded behind, 

 semi-transparent, purplish-white or reddish-white ; cilia pale 

 reddish dashed with brown at each nervure. Female with 

 antennae shorter and threadlike, yet finely toothed ; abdomen 

 stouter; thorax and fore wings alike darker red brown, 

 almost purple brown, the latter much more uniform in colour 

 and rather more thickly covered with scales ; first line hardly 

 perceptible ; second indistinct except toward the costa, where 

 is a yellow spot ; hinder area rather more tinged with 

 purplish ; hind wings purplish-grey. 



Underside of all the wings very thinly covered with pur- 

 plish scales, except the margins, which are rufous dusted with 

 whitish ; body and legs chestnut-red. 



Slightly variable in depth of colour of the fore wings, some 

 males having these much sufiused with ochreous, others being 

 rather dark or unicolorous, like the female ; on the other 

 hand, some females are as pale as ordinary males. 



On the wing in November, principally in the middle of the 

 month, but occasionally emerging at the end of October. 



Larva plump, cylindrical, only slightly thicker in the 

 middle ; head rounded, rather small, yellowish-green ; 

 body polished and opaque, pale, delicate, whitish blue- 

 green, with a very broad deep green dorsal stripe occupying all 

 the space to the extremely narrow yellowish subdorsal lines ; 

 spiracular line double, slender, wavy, white ; undersurface, 

 legs and prolegs, glossy pale green. When about to spin up 

 it changes to a uniform semi-transparent green, like the 

 undersurface of a maple leaf. When newly hatched very pale 

 greenish ochreous, with long silky curved whitish hairs ; 



