134 



LEPIDOPTERA. 



Hue with another dark blotch at the anal angle ; cilia white, 

 interrupted by large purplish-black spots. Hind wings 

 scarcely rounded, the hind margin being rather sinuous ; 

 very pale greyish-brown, with a straight whiter band across 

 the middle ; uervures darker ; cilia pale-brownish, spotted 

 with darker. Female with antennae simple, otherwise similar. 



Underside of all the wings whitish-grey, with the nervures 

 rather darker, and crossed by two indistinct white transverse 

 stripes ; body and legs yellowish-brown, the latter with large 

 white tufts. 



Variable iu colour and in the extent to which the dark 

 portions are clouded with white or with brownish ; or on the 

 other hand the white central band is sometimes suffused with 

 grey. In Mr. F. Bond's collection is one in which the fore 

 wings are wholly of the dark colouring ; in that of Mr. F. N. 

 Pierce, a lovely male having the fore wings almost entirely 

 white, the transverse lines alone being just visible. Mr. 

 Sydney Webb has a beautiful male in which the white central 

 band is extremely broad, and sharply edged with the two dark 

 transverse lines, which are shaded off outwardly. 



On the wing at the end of May and in June. 



Larva rather elongated, narrowed at each end ; sides keeled ; 

 skin shining and transversely wrinkled ; head large, rounded 

 and highly polished, green. Colour bright green, with two 

 parallel yellow dorsal lines, and less noticeable subdorsal lines 

 composed of numerous yellow spots most distinct on the 

 anterior segments. A conspicuous narrow yellow spiracular 

 stripe, on which the white-ringed black spiracles are placed 

 in pink blotches ; a purple line margins the upper edge of this 

 spiracular band, which is continuous from head to tail. 

 (C. Fenn.) 



July, August, and the beginning of September, on oak. 

 Said also to feed occasionally on beech and birch ; if so this 

 is here very rarely the case. The Rev. Bernard Smith states 

 that it nestles in chinks of the bark of trees in the day-time. 



