trifidje:. 71 



off below ; along the dorsal margin from near the base is a 

 black longitudinal stripe edged with red-brown, the latter 

 broadened in the middle and then interrupted by two curved 

 dusky-white streaks, edged on both sides with deep red-brown, 

 beyond which it continues to the hind margin, but encloses 

 an elongated patch of the ground colour above the anal angle ; 

 first line faintly indicated by a long obscure angle lying 

 between the median and subdorsal nervures ; the second 

 only by the curved white streaks already mentioned ; before 

 the hind margin is a row of red-brown clouds throwing 

 inward long points, one of which runs far into the wing ; 

 extreme margin edged by a white line ; cilia black-brown 

 along the base and dashed with white, but the tips white, 

 streaked with pale grey. Hind wings rather small, hind 

 margin much crenulated, sinuous and excavated below the- 

 apex ; white with brown nervures, and broadly shaded with 

 brown along the apical and hind margins ; cilia white, inter- 

 sected with dark brown. Female similar, but with the body 

 shorter and stouter. 



Underside of the fore wings pale smoky-brown, shading to 

 white at the base and dorsal margin, and faintly dusted with 

 white along the hind margin. Hind wings white, dusted 

 over the costal region with brown, and the hind margin 

 dappled with the same. Body, legs, and leg-tufts brownish- 

 white. 



Not variable except in size, and in this respect our largest 

 examples seem to be inferior to some of those from abroad. 



On the wing in June and July. 



Larva elongate, smooth, rounded, transversely wrinkled, 

 sides puckered ; very slightly attenuated in front ; head 

 shining, hardly bifid, yellow spotted with black; ground 

 colour whitish-green or greenish-yellow, with a transverse 

 bright yellow band on each segment from spiracle to spiracle ; 

 one lateral and two dorsal spots on each segment, and a pair 

 of spots obliquely placed, and often united, below each 



