BOARMID.E— SCORIA. 35 



Ciliated, black-brown, powdered at the base with white ; 

 palpi slender, pointed, black; tongue exposed; eyes deep 

 black; head rather smooth, yellowish-white ; thorax tinged 

 m front with the same and covered with long loose scales, 

 which lie smoothly back, and shade off to pure white behind; 

 abdomen long, smooth, moderately slender, white; lateral 

 and anal tufts small. Fore wings elongated, bluntly pointed; 

 costa nearly straight, only faintly arched at the base and 

 apex, which is angulated ; hind margin long, oblique, gently 

 curved, dorsal margin also faintly rounded; extremely' silky, 

 creamy-white; nervures all visible as slender, hair-like, 

 black-brown lines broadly shadowed from beneath ; no other 

 markings; cilia shining creamy-white. Hind wings elon- 

 gated; the apex rather squared; hind margin beneath it 

 faintly hollowed, thence rounded ; colour and veining as in 

 the fore wings ; cilia similar. Female rather smaller, with 

 the fore wings a little more pointed, and the body stouter, 

 otherwise similai'. 



Underside dull creamy-white; costal region of the fore 

 wings faintly clouded with yellow and grey ; all the nervures, 

 and a stripe down the middle of the discal cell in each wiag' 

 smoky-black, as also is a slender line around all the hind 

 margins; cilia white. Body yellowish-white; legs long, 

 purplish-brown, dusted with white. 

 Not variable. 



On the wing from the end of May till the beginning of 

 July. 



Larva rather elongated, smooth and stout, tapering con- 

 siderably from the hinder segments towards the head, which 

 is flat, rounded on each side, pale ochreous ; general colour 

 of the body ochreous or brownish-grey, but ornamented with 

 so many waved and irregular lines that it is hard to describe; 

 down the middle of the back is a double fine dusky line! 

 which with the first subdorsal line, composed also of a double 

 fine thread, forms a series of irregular figures by alternately 



