TRIFID^E. 197 



nervures, and the costal margin broadly shining white ; cilia 

 smoky-white. Female closely similar, but antenna3 thread- 

 like ; abdomen stouter. 



Underside of the fore wings greyish-white; pale drab 

 along the costa, hind margin, and nervures ; reniform stigma 

 faintly smoky-black ; beyond it is a slender transverse line of 

 the same colour. Hind wings white, dusted along the costal 

 region with brown ; central spot round, black ; beyond it is a 

 shadowy smoky transverse line; cilia dusky white. Body 

 and legs pale drab. 



Not very variable, but rather so in the presence or absence 

 of the reddish-brown dusting of the fore wings, which some- 

 times is so dense as to obscure the drab colouring ; in some 

 specimens the subterminal line shows itself as a faint series 

 of minute yellowish cloudy spots ; in others the other lines, 

 which are always obscure, disappear, and in those of darker 

 dusting the reniform stigma becomes very indistinct. Mr. 

 W. H. B. Fletcher has a specimen of which the thorax and 

 fore wings are dark greyish-brown, and in that of the late 

 Mr. F. Bond is one nearly black. Mr. R. Adkin possesses 

 one having the first and second lines strongly marked, com- 

 posed of rows of black dashes on the nervures ; and one was 

 recorded at Neath, South Wales, by Sir J. T. D. Llewellyn, 

 which when fresh was flushed with a beautiful lilac tint. 

 On the wing in March and April. 



Lakva rounded, smooth, cylindrical ; a shining plate on 

 the second and anal segments'and one on each of the anal 

 prolegs; head black reticulated with yellow; body pale 

 green, yellowish-green, olive-green, or purplish-brown, very 

 frequently broadly and transversely shaded with dark 

 purphsh-brown ; dorsal and subdorsal lines conspicuous, 

 yellowish, the former especially distinct; spiracular stripe 

 broad, yellowish, its lower edge curved; on the twelfth 

 segment the dorsal line bisects a transverse white band and 

 subsequently becomes white; dorsal and anal plates, legs 



