156 LEI'IDUI'TERA. 



Antennas of the male rather thick, simple, finely ciliated^ 

 black, minutely barred at the back with dirty white ; palpi 

 very short, but thickly set with bristly hairs, deep black ;. 

 head and thorax black, minutely dusted in front with dark 

 brown ; abdomen nearly cylindrical, smoky -black ; lateral 

 tufts small, placed on a thick ridge ; anal tuft short and a 

 little thickened. Fore wing's broad and very blunt ; costa 

 but little arched, in its middle portion almost straight ; apex 

 rounded ; hind margin very little oblique, almost perpendi- 

 cular and straight, yet fully curved o£E at the anal angle ; 

 dorsal margin rather rounded, densely ciliated ; the whole 

 surface silky, smooth uniform smoky-black with the nervures 

 a little deeper black ; but the extreme margin and cilia of 

 the apex, and running round to the costa, are narrowly pure 

 white, the cilia below the apes shading otFinto shining black 

 with a faint mixture of white. Hind wings rather elongated, 

 much rounded behind, smooth smoky-black ; cilia more glossy 

 black. Female rather smaller, having the abdomen shorter 

 and the fore wings rather more narrow; otherwise similar. 



Undersides of all the wiugs, as well as the body and legs, 

 smoky-black, the apical cilia of the fore wings white as on 

 the upper side. Not variable, but becoming a little browner 

 from fading during life. 



Oa the wing in June and July, in the latter month more 

 particularly in the north. 



Larva when full grown nearly three-quarters of an inch 

 in length; cylindrical, stout in proportion, and about 

 equally thick throughout, rather shining; head rounded, 

 green ; ground colour of the back green or bluish-green, 

 becoming on the sides gradually paler toward the spiracular 

 region ; dorsal line darker green, becoming on the anal 

 segment dark red, and thicker, forming a very conspicuous- 

 mark ; subdorsal stripes of a darker green than the ground 

 colour, and running between two fine lines of whitish-green, 

 which in some individuals are seen to be very finely edged 



