BOARMIDjE—BAPTA. 363 



1 \ inch. Fore wings somewhat ovate, very silky ; white, with 

 a black central dot, and a blackish streak below it ; a large 

 silver-grey cloud towards the hind margin is divided by a 

 rippling white stripe. Hind wings white. 



Antennas of the male threadlike, almost naked, pale brown, 

 but at the back white towards the base ; palpi minute, pale 

 brown ; tongue exposed ; eyes black ; head pure silky-white, 

 the face remarkably smooth and glossy ; thorax and abdomen 

 glossy white, the former with long loose scales on the shoulder- 

 lappets, the latter with very small lateral and anal tufts. 

 Fore wings slightly ovate ; costa arched ; apex decidedly 

 augulated ; hind margin gently rounded, but the anal angle 

 distinct ; dorsal margin straight ; colour silky snowy white ; 

 discal spot a round black dot ; below it near the dorsal 

 margin is a short rippled black cloudy streak ; no first line ; 

 second line black, repeatedly angulated and indented, shaded 

 inwardly with black dusting, but hardly reaching the costa ; 

 outside it, above the middle, separated by a rippled white 

 stripe, is a large dense cloud of black atoms, and along the 

 hind margin a row of distinct black lunules ; cilia white, 

 shaded with smoky-grey. Hind wings broad, rounded 

 behind, but squared at the anal angle ; silky-white ; the 

 central spot a minute black dot; just beyond the middle is a 

 shaded faintly black transverse stripe, followed by another, 

 more obscure, lying near the hind margin, and formed of a 

 mere dusting of black scales ; hind margin faintly streaked 

 with black ; cilia glossy white. Female accurately similar. 



Underside of all the wings snowy-white; the fore wings 

 having a faint smoky tinge along the costa, and the black 

 discal spot visible through from above. Body silky-white ; 

 legs pale brown. 



loanable in the intensity of the black clouding in both 

 sexes, some specimens being darker, others much whiter than 

 typical forms. One in Mr. Sydney Webb's collection has a 

 central striate visible and tolerably straight, another has 

 a very strong leaden tinge with blackenel apex and hind 



