^6 LEPIDOPTERA. 



margin straight; ground colour sliining creaniy-wliite ; basal 

 portion thickly dusted with dee]) uinbreons, forming a cloud 

 especially upon the costal half; tirst line rather oblique, two 

 or three times indented, brown, forming the inner edge of 

 a broad deep brown central band, the outer edge of which 

 is the second line and is deeply indented above the middle 

 and hollowed below it so as to be decidedly oblique ; in this 

 central band is a black discal spot, rather large and crescent 

 shaped, and often a dusting of whitish brown: outside it is 

 a faint series of light brown clouds ; cilia white. Hind 

 wing rather short and a little squared at the hind margin, 

 and also at the anal angle ; central spot a black dot, placed 

 in a faint umbreous transverse cloudy band ; beyond it are 

 two series of fainter brown clouds, almost forming curved 

 interru[)ted faint stripes, cilia white. Female very similar. 



Underside of the fore wings dusky white, shaded to the 

 middle with dull pale brown, and faintly clouded beyond 

 with bands of the same. Hind wings silky-white ; central 

 spot blackish ; markings of the upper side showing in still 

 fainter cloudings. Body and legs light brown. 



Not very variable, but the colour of the central band fades 

 rapidly during life, and in captured specimens is usually of 

 a rather pale umbreous. Specimens from the Isle of Port- 

 land, Dorset, have the pale brown rippled lines of the hind 

 wings more distinct, sometimes four in number, and that 

 outside the second line of the hind wings also distinct, and 

 more of a creamy-grey. 



On the wing in July; but in conlinemenl a second gene- 

 ration lias been reared in September. 



I.AUVA rugose, short and .-tout, tapering toward the head, 

 which is small, rough and rounded, dark-brown ; on the 

 second segment is a didl pale ochreous plate ; skin entirely 

 covered with minute warts, dull greyish-brown, shading into 

 reddish ochreous on the posterior segments ; dorsal and sub- 

 dorsal lines paler than the ground colour, sometimes reddish- 



