TRIFID^. ,^7 



and very faintly hollowed ; colour whitish-buff, faintly dusted 

 with black atoms and darkened a little along the hind margin ; 

 nervures white, very slenderly edged on each side with smoky- 

 brown or black, the median swelling into a white spot at the 

 end of the discal cell ; above the median, in the discal cell, 

 are similar parallel dark lines ; first line faintly indicated by 

 three or four cloudy black dots, most distinct near the dorsal 

 margin ; second line a long row of similar cloudy dots, the 

 largest near the same margin; extreme hind margin more 

 minutely dotted with black; cilia buff, intersected by a 

 slender brown line and tipped with white. Hind wings 

 rather long, rounded, but the hind margin slightly hollowed 

 below the apex ; white, clouded along the hind margin with 

 smoke colour ; nervures sharply smoky-black or smoky-brown ; 

 cilia white. Female very similar, a little stouter, and with a 

 narrower anal tuft. 



Underside of the fore wings dusky-white, shading into 

 pale buff at the costa and hind margin; discal cell filled 

 with long cloudy-white scales; at the apex is a cloudy 

 smoky-black spot. Hind wings white, dusted over the costal 

 and apical regions with brown ; extreme hind margin of all 

 the wings dotted with black, the hind wings the most dis- 

 tinctly so. Body and legs pale buff. 



There is some small variation in the ground colour, toward 

 brownish-buff, and in the distinctness of the fine dark lines 

 which margin all the nervures, those edging the median and 

 its branches being sometimes thickened, or those above it 

 blackened, so that in some individuals there is considerable 

 darkening of the costal half of the wing. 

 On the wing in June and July. 



Larva plump, cylindrical, very slightly tapering toward 

 the head, which is pale brown with two darker stripes down 

 the face ; dorsal half of the body pale ochreous, smooth and 

 shining, but dusted with grey ; dorsal line white, slenderly 

 edged on either side with greenish-black ; subdorsal line also 



