282 LEPIDOPTERA. 



the wing towards the apex, and is frequently continued to 

 the apex by junction with another row of short black streaks, 

 but in other cases avoids this apical row of streaks and 

 curves inward to the second costal spot — thus forming a 

 (normal) second line ; outside this, and close to the hind 

 margin, are a few minute black dots varying in number from 

 one or two to a slender row ; cilia yellow. Hind wings rather 

 broad, with the apex and hind margin rounded ; whitish buff, 

 deepening in colour towards the dorsal margin ; having a 

 blackish central spot, and, usually, one, two, or three similar 

 small spots near the anal angle ; cilia yellow. Female slightly 

 larger, with simple black antennae ; wings paler, almost 

 creamy white, markings similar. 



Underside paler than the upper in both sexes ; discal spots 

 of the fore wings distinct, and also an oblique row of black 

 spots corresponding with a portion of the oblique row on the 

 upper side, but shorter, and with the spots broader and 

 blacker ; sometimes a second spot, beyond the discal, is 

 visible, but the remaining spots of the upper side are 

 not reproduced. In the hind wings the spots of the upper 

 side are strongly emphasised ; abdomen pale buff or whitish 

 with two rows of small black dots ; legs black with large 

 tufts of buff scales on the tibiee. 



Variable in colour, in the male from rich ochreous to 

 greyish-buff, in the female from pale greyish-buff to white ; 

 also in the number and intensity of the black spots, particu- 

 larly those of the oblique stripe, most of which are frequently 

 obsolete on the upper side, but show through from beneath ; 

 in other cases these are intensified and extended, the com- 

 pleted row curving to the costa and forming a normal " second 

 line," while another row makes its appearance near the base> 

 crossing the wing perpendicularly from the black costal spot 

 and forming a normal " first line." In a specimen found at 

 King's Lynn, these lines are very strongly shown in short 

 black blotches, with a similar continuation to the apex of the 

 wings and a hind-marginal row of blotches. This form has 



