PTEROPHORID^—OXYPrrLUS. 371 



the iniddle, beyond this strongly arched ; apex of both lobes 

 pointed but drooping; hind margin of the hinder lobe 

 deeply excavated ; dorsal margin concave ; colour black- 

 brown abundantly dusted with golden-brown ; just before the 

 middle is a faint white cloud ; before the fissure a bright 

 white dot sometimes edged with black ; beyond this is an 

 oblique silvery-white transverse stripe crossing both lobes 

 and edged on the anterior margin of each by a hlack minute 

 dot; beyond this is a more oblique and more slender white 

 stripe or line, hardly complete, yet produced along the costa 

 to the apex; hinder cilia mixed brown and white but also 

 containing black dots, the hollow in the hinder lobe white ; 

 dorsal cilia short, dusky white, with two small black tufts, 

 and a broad black patch beneath the anal angle. Hind 

 wings dark brown, with golden-brown dusting; cilia mainly 

 darker smoky-brown, except a white dash upon that of the 

 dorsal edge of the second lobe, and that of the same margin 

 of the third lobe, which is white, enclosing a large black- 

 brown patch extending to hoth, sides of the lobe. Legs verv 

 long and elegant, alternately white and black-brown. Female 

 similar but with a stouter body. 



Underside quite like the upper except that there are two 

 white clouds on the first lobe of the hind wings. Body 

 brown, mottled with pale yellow. 



On the wing from the end of June to the beginning of 

 August. 



Lakva. Length G lines, attenuated behind ; head smaller 

 than the second segment, yellowish-green, the crown and 

 sides mottled with dark violet-brown, and the mandibles 

 pale reddish-brown ; ground colour green or yellowish with 

 a green tinge; dorsal line slender, faintly pink; subdorsal 

 lines broader, pale rosy ; raised dots brown, emitting each a 

 star-like ray of short white bristles and one moderately long 

 white hair chequered with brown at the base; spiracles 

 enclosed each in a violet-brown ring ; prolegs yellowish- 



