230 LEPIDOPTERA. 



oblique, gently rounded, and slightly excavated before the 

 anal angle ; dorsal margin straight and rather short ; greyish- 

 white, almost wholly covered with mottled markings composed 

 of dark grey or blackish atoms ; from the middle of the base 

 is a slender, rather long black line throwing off three rather 

 small curved branches, two of them into the first transverse 

 line, which is double, blackish , indistinct, and much indented ; 

 the second line lies far beyond the middle and is deeply 

 toothed, notched, and scalloped, white, edged on both sides 

 with dark grey ; nervures in the middle area, and also some 

 oblique costal streaks, dark grey ; orbicular stigma nearly 

 round, pale grey, ringed with black ; reniform stigma grey, 

 indistinct, edged and clouded with black ; hind margin 

 spotted with black ; cilia white, scalloped and indented. 

 Hind wings clear white ; the nervures dusted with blackish 

 and forming black lines beyond the middle ; margin rather 

 crenulated; cilia sinuous, white. Female similar except 

 that the nervures of the hind wings are blacker, there is 

 usually some grey clouding between them, toward the margin, 

 and in most instances a cloudy grey transverse line or stripe 

 beyond the middle. 



Underside white ; fore wings with grey nervures beyond 

 the middle, and with three blackish lines from the costa ; 

 cilia streaked with black. Hind wings tinged with gi'ey 

 along the front margin ; a row of black dashes on the nervures 

 indicates a faint transverse stripe ; central spot minute, dark 

 grey. Body and legs greyish-white. 



Usually rather constant in colour and markings, varying 

 only a little in tint of the grey mottling ; the hind marginal 

 space is, however, often darker or ^J^-lei" than the rest, and a 

 dark grey band outside the second line is not unfrequent. 

 A rare variety is nearly unicolorous blackish grey or dark 

 brown-grey, and in this the white second line is sometimes 

 obscured. This form was described by Haworth as a 

 (probably) distinct species under the name of infuscata. 



On the wing in June and July. 



