TRIFID^E. 21 S 



distinctly crested on the top and at the back, and the 

 shoulder lappets raised ; collar deep black ; a broad deep 

 black bar across each section of the upper crest, the upper 

 edge of the back crest, and the edges of the shoulder lappets ; 

 remaining surface of the thorax bright green, shaded with 

 white ; fascicles very short, as though cut off, white ; abdomen 

 light grey, with a black bar across the basal portion of each 

 segment except the last, a portion of the black scales obliquely 

 raised on each into a tuft, those on the third and fourth 

 forming conspicuous crests, the rest only raised in some 

 specimens ; all the crests minutely tipped with white, and 

 behind them the lower part of each segment is edged with 

 white ; lateral tufts spreading, grey and black ; anal tuft 

 narrow, mixed black and white. Fore wings rather broad ; 

 costa nearly straight ; apex and hind margin decidedly 

 rounded ; anal angle well marked ; dorsal margin gently 

 undulated ; colour bright green with bright white spots, or 

 small clouds, along the costa and the subcostal and median 

 nervures ; near the base is a deep black angulated and 

 indented transverse stripe ; a second in the middle of the 

 wing, oblique, disconnected, and consisting of a series of bent 

 black streaks and lines, a broadly hooked black streak near 

 the costa being conspicuous ; a third deep black transverse 

 stripe, repeatedly angulated and thickened in the outer angles, 

 lies near the hind margin, still nearer to which is a central 

 black spot and then a series of black dots edged inside with 

 white ; cilia green, broadly barred or chequered with black, 

 (When freshly emerged the white spots on the median 

 nervure are decidedly tinged with rosy,) 



Hind wings dark grey, with a clouded whitish partial 

 transverse band beyond the middle, which becomes slender 

 and rather silvery-white near the anal angle, where it touches 

 a black blotch divided by two white bars ; cilia white, with 

 double black dashes. 



Female quite similar, but with abdomen a little shorter. 



Underside of the fore wings smoky-blackish, shading off 



