60 LBPIDOPTEkA. 



a cloudy blackish transverse stripe, followetl by another, less 

 distinct, toward the hind margin ; cilia whitish dusted with 

 smoky grey or reddish. 



Rather variable in the ground colour from dark smoky- 

 brown, almost smoky-black, to rather light reddish -brown ; 

 the darkest specimens often showing the pale colour along 

 the secoad line ; otherwise very constant. 



On the wing from the middle of July through August. 



Larva thick, cylindrical, the first four segments very 

 slightly tapering ; skin smooth, soft, not shining ; head of 

 moderate size, rounded, very highly polished ; ground colour 

 umbre-brown, sometimes with an olive or reddish tinge, the 

 space between the subdorsal lines dull ochreous on the pos- 

 terior segments ; dorsal line white, threadlike, distinct on the 

 second to fourth segments, afterwards inconspicuous, whitish- 

 ochreous, interrupted with dark grey or brownish at each 

 incision ; a series of dark grey or brownish wedge-shaped 

 subdorsal dashes, the apex in front, and increasing in inten- 

 sity of colour to the eleventh and twelfth segments, where 

 they are most prominent and often black ; the bases of these 

 wedge-shaped markings usually project a shade to the dorsal 

 line, thus forming a series of broad V-shaped grey or brownish 

 dorsal markings, the apex behind. A pale ochreous thread 

 borders the lower edge of each of the subdorsal wedges, 

 uniting obliquely with the similarly coloured faint and 

 threadlike subdorsal line. Spiracular stripe broad, ochreous 

 or reddish-ochreous, edged above with white, conspicuously so 

 on the anterior segments ; usual sj)ots and spiracles dark 

 greyish-brown, distinct ; undersurface and sides below the 

 spiracular stripe pale greenish-brown, dusted with grey or 

 dark brown ; two black dots are obliquely placed above, and 

 two on each side, of each proleg. Head reddish-brown, reti- 

 culated with dark brown, and with a blackish blotch in the 

 centre of each lobe ; legs pale brown. 



When young the dorsal and subdorsal markings are less 



