168 



LEPIDOPTERA. 



slender indented thread and does not reach the apex of the 

 wing ; the position of the ysual orbicular stigma is indicated 

 by a short tawny streak ; reniform stigma faintly and 

 partially outlined in the same colour, but with a cloudy 

 black dot at the base ; cilia ochreous with a purplish flush. 

 Hind wings white with a pearly gloss, nervures pale yellow 

 or tinged with brown; hind margin also shaded with 

 yellow; cilia white. Female rather larger, with the 

 markings of the fore wings a little more distinct, and 

 the nervures of the hind wings brown. 



Underside of the fore wings pale primrose-yellow along 

 the costa and hind margin, shading off to white with a 

 pearly lustre ; reniform stigma and the second line faintly 

 indicated in reddish-brown. Hind wings pearly white, 

 dusted along the costal and apical regions with yellow; along 

 the apical portion of the hind margin are a few brown dots. 



Not very variable ; but the ground colour varies from pale 

 ochreous to rich ochreous-yellow and pale yellow ; the colour 

 of the slender lines and nervures becoming more rusty-red 

 or browner accordingly. 



On the wing here in August and the beginning of Sep- 

 tember, but on the Continent from June to August. 



Larva j^ale flesh-colour with three white dorsal lines; 

 between these, on each segment, are two black dots; on 

 the side is a yellowish longitudinal stripe, above which are 

 situated the black spiracles ; head brown dotted with black. 

 (Dr. Hofmann.) But his figure, which is good, and looks far 

 more natural, is very pale bluish-grey; dorsal and subdorsal 

 lines slender, white, narrowly margined on each side with 

 dark grey; spiracular stripe broad, pale yellow; head pale 

 brown. 



March and April, upon grasses. 



Pupa undescribed, in a slight cocoon in the earth. 



The moth hides among herbage during the day, flies at 



