I50 LEPIDOPTERA. 



the upper edge of this beuds up toward the apex; close 

 to the base of the dorsal margin is another prostrate black 

 streak ; the ordinary second line is suggested by four or five 

 black dots obscured by the umbreous clouding; at the end 

 of the discal cell is a black dot edged outwardly with white ; 

 umbreous dashes lie between the nervures along the hind 

 margin, the most conspicuous being close to the anal angle, 

 and others less distinct above the central stripe towards the 

 ajsex ; nervures all pale and partially edged with fine umbreous 

 lines ; cilia whitish-brown spotted with umbreous and dusted 

 at the tips of the nervures with white. Hind wings rather 

 small, the hind margin somewhat sinuous ; pure, clear white 

 with a faint suggestion of brown dotting on the hind margin 

 below the apex; cilia white. Female having the fore wings 

 very slightly broader; margin and tips of the nervures of 

 the hind wings pale brown ; otherwise similar. 



Underside of the fore wings very pale brown along the 

 costa, shading off to white at the dorsal region, but having 

 pale brown nervures ; on the costa, at four-fifths its length, 

 is a black spot, and along the hind margin a row of fine 

 black dots which throw off black rays into the pale brown 

 cilia. Hind wings white tinged with very light brown along 

 the costa and nervures. 



Hardly variable, except that the stripe through the middle 

 of the wings ranges from black-brown to pale umbreous. 



On the wing in July and August. 



Larva generally of a pale greyish-ochreous tint with longi- 

 tudinal stripes. Head dusky-grey mottled with ochreous, 

 the front of each lobe bordered with black, followed on 

 each side of the central portion by a white streak ; dorsal 

 line whitish, conspicuous only on the second, third, and 

 fourth segments, thence nearly obliterated by the dusky 

 edging which encloses it ; on either side is a broad stripe 

 of mottled greyish-ochreous followed by a pale ochreous 

 stripe, and another, darker, below it; subdorsal line whitish, 



