(46 d).Forewing dull purplish grey, shaded with olive brown; the median shade, the outer half of median area, the terminal area except at apex, and a costal patch before submarginal line, all of this latter colour; lines as in "micacea", but the outer line more curved, sometimes visibly bent on vein 5; submarginal line generally preceded by a narrow dark cloud; the stigmata large, pale grey, with dark outlines; hindwing dull dark grey with a darker outer line and submarginal cloud; continental specimens, = "vindelicia" Frr., are larger and better marked than the dull British "petasitis".