314 LEPTDOPTERA. 



squared, with the costa hardly curved, the apex very bluntly 

 angulated, the hind margin almost straight and hardly 

 oblique, the dorsal margin rounded ; very pale buff or brownish 

 white, faintly tinged with smoky-brown toward the costa ; 

 nervures rather thickened and slightly tinged with brown ; 

 above the median nervure is an ill-defined longitudinal stripe 

 or space of the whiter ground colour, above and below which 

 are the portions of the wing most tinged with brownish ; 

 usually devoid of markings, but in some specimens an exceed- 

 ingly faint angulated row of minute dots indicates tbe position 

 of what should be the second transverse line ; cilia creamy- 

 white. Hind wings broad and ample, nearly as long as the 

 fore wings ; rounded ; creamy-white with a faintly brownish 

 line along the hind margin ; cilia white ; legs buff. Female 

 quite different ; antenna3 short, with small distinct black 

 pectinations ; the shaft white ; head white, with bright yellow 

 palpi ; thorax and abdomen stout, glossy white. Fore wings 

 comparatively narrow, with the margins gently rounded and 

 the apex scarcely angulated ; creamy-white or pure white, 

 with the faintest possible tinge of brownish along the nervures ; 

 hind wings long and broad, rounded ; clear white, with faintly 

 brownish nervures ; cilia all white ; legs bright yellow. 



Underside of the fore wings in the male greyish-buff, with 

 the dorsal margin whitish, and the costa tinged with smoky 

 toward the apex ; hind wings creamy-white ; cilia white ; 

 body pale buff or whitish ; legs yellowish. In the female 

 similar to the upper side; legs bright yellow. 



Not variable except in the occasional presence of dots, 

 indicating a transverse line beyond the middle, in the male. 

 ]\Ir. F. J. Hanbury has several showing this rather distinctly, 

 and in the collection of the late Mr. F. Bond is one in which 

 the line of dots is fairly complete, indicating the course of 

 the line to be from the costa, not far from the apex, to near 

 the middle of the dorsal margin, with a considerable bend 

 outward. 



On the wing in July. 



