TRTFID&. 45 



three deep black arrow-head marks. Hind wings white, 

 shading off to smoky-grey. 



Antennas of the male simple, minutely ciliated, grey-brown ; 

 palpi rather slender, grey-brown, scantily tufted with pale 

 grey hair-scales ; eyes black, lashes long and black ; head 

 prominently tufted, the projecting scales having a shallow 

 dividing channel across the face, and beneath it, on each side, 

 the commencement of a black bar, otherwise pale grey dusted 

 with brown ; collar of the same colour, but barred across the 

 middle with black, and beneath this faintly with brown ; 

 remainder of the thorax light grey, the scales drawn together 

 at the back into a long crest which projects over the base of 

 the abdomen and is blackened beneath ; fascicles white ; 

 abdomen greyish-brown ; lateral tufts small ; anal tuft long 

 and contracted, whitish-grey. Fore wings long and narrow, 

 with the apex produced and bluntly pointed; costa very 

 slighty arched ; hind margin crenulated, very oblique, hol- 

 lowed below the tip, then filled out and slightly angulated ; 

 dorsal margin straight to near the base, then gracefully 

 curved in ; colour very pale slate or whitish-grey and unusu- 

 ally glossy ; from the base arise three hairlike black streaks, 

 one on the median nervure and one each close above and 

 below it, also two more, oblique and bent, nearer the dorsal 

 margin ; first line black or black-brown so deeply and acutely 

 angulated as to appear like additional longitudinal hairlike 

 lines; in character with this the nervures are also indicated 

 throughout by similar black lines ; second line a series of 

 short deep crescents between the black nervures ; subter- 

 minal line a white, indented, much undulated stripe, edged 

 inwardly by a long pale cloudy shade, and in the middle by 

 two conspicuous, slender, deep black wedges ; outside it is a 

 series of small grey clouds ; orbicular stigma quite small, 

 pale grey edged with black, and usually accompanied by a 

 rather smaller similar round spot ringed with black, both 

 placed in a broad dark grey or cloudy-black central shade 

 which crosses the wing ; reniform stigma large, white edged 



