52 LEPIDOPTERA. 



of the back of the thorax is a narrow grey stripe. Abdomen 

 very long, tapering regularly from the base to the point, and 

 having down the centre of its back a slender, interrupted, 

 and partially divided, white line faintly edged on each side 

 with a blackish or dark brown stripe ; down the sides is 

 a series of silvery-white streaks or dashes. Fore wings 

 long and narrow, sharply pointed ; costa unusually straight ; 

 hind margin oblique and rather sinuous ; dorsal margin 

 waved and so deeply hollowed before the anal angle as 

 to cause the latter to form a conspicuous elbow. Hind wings 

 rather long, bluntly pointed, with hind margin hollowed 

 before the anal angle, which forms a distinct projection ; 

 dorsal margin dilated. Fore wings pale olive-brown, varied 

 along the central area with dashes of dark brown and short 

 black lines, and having a longitudinal silvery stripe, which, 

 arising on the dorsal margin at some distance from the base, 

 passes below the middle of the wing, then curves gently 

 upwards, and proceeds to the tip ; this stripe is compound, 

 consisting of a clear slender silvery-white line, edged with 

 black above, and below by a broader creamy white line, 

 shading along its lower edge into olive-green, but much 

 tinged with silvery, especially in its basal portion. Outside 

 this, and near the hind margin, is a slender silvery-white 

 line, edged externally with brown, from the apex to the 

 anal angle ; the margin outside this being faintly clouded 

 with whitish, olive, and grey. At the middle of the base of 

 the wing is a broad silvery longitudinal dash ; and slender 

 silvery lines indicate several of the nervures. The extreme 

 edge of the dorsal margin is also sharply silvery-white, and 

 there is a round black dot, sometimes set in a pale space, at 

 the apex of the discal cell. Cilia light brown. 



Hind wings bright rosy-red at the base, and broadly so 

 to the anal angle. A broad black band lies across the 

 middle of the wing, and extends round the apex, returning 

 as a narrow black stripe near the hind margin to the anal 

 angle. The enclosed space is of a very pale rosy colour, 



