78 LEPIDOPTERA. 



rather squared behind ; pale uinbreous shading to white in 

 front, and with the base rather pale ; central spot small, 

 black ; nervures toward the dorsal half of the wing streaked 

 with dull black and white, and the intermediate areas dusted 

 with dark brown ; near the hind margin is a slender obscure 

 whitish line expanding into a round white dot near the anal 

 angle ; cilia pale grey-brown, clouded with darker. Female 

 similar but with a rather stouter body. 



Underside of the fore wings shining pale smoky-brown ; 

 costa yellow-brown, barred beyond the middle with three 

 narrow, and one broad, black-brown clouds ; discal spot 

 narrow, black ; hind margin edged with black streaks. Hind 

 wings shining, dusky white ; twice faintly barred beyond the 

 middle with curved lines of brown streaks ; central spot 

 black, triangular. Body whitish-brown with a dark brown 

 anal tuft ; legs also whitish-brown, barred with black- 

 brown. 



Usually not variable to any noticeable extent, but a little 

 over twenty years ago a unicolorous smoky-black form was 

 reared at York along with ordinary specimens, and received 

 the name of var. angdicata. This striking melanic form 

 seems now to be rather frequent in the north, but not to be 

 accompanied by intermediate varieties. 



On the wing in ^lay and June, and as a second generation 

 in August. 



Larva rather wrinkled, not very robust, tapering toward 

 the head; general colour pale lemon yellow, more or less 

 suffused with rich brown ; down the middle of the back is a 

 series of lily-shaped deep brown spots, bordered on either 

 side by a slender subdorsal line of the same colour ; on each 

 side is a row of slanting light yellow stripes and deep brown 

 blotches ; undersurface greenish-yellow ; central ventral line 

 deep brown ; subventral lines much broader, of the same 

 colour ; body studded with numerous small white tubercles. 



Or — Ground colour pale 3-ellowish-green ; down the middle 



