I.ARE.\Tin.K CHEIXIA roniA. j«9 



elongated, rounded behind : silky whitish-ljrown, with a faint 

 suggestion of a central cloudy suioke-coloured transverse 

 stripe ; hind margin dotted with black : cilia silky pale 

 brown. 



Female having very short, Haps ot wings : thorax and abdo- 

 men thick, the latter short and jiointwl behind, dull brown ; 

 winglets short and inconspicuous, the fore pair having some- 

 times a partial, or taijering. black ti'ansverse band near tlie 

 hind margin ; legs long, untufted, brown. 



Undersides of all the wings of the male jiale smoky-brown, 

 with a central dark brown continuons band, much bent in 

 the hinil pair. l?ody and legs brown. 



There is a little variation in the depth of colour and of the 

 distinctness of the transverse lines and central obscure stripe, 

 specimens from Scotland being often rather dark ; also occa- 

 sional specimens from that country are of rather large si/.e. 

 The female is, in the north, sometimes nearly black. I once 

 took, in Surrey, a single specimen of the male wholly silky 

 yellow-brown, almost butf, and devoid of the transverse lines, a 

 casual and most iiuusual aberration among thousands of th^- 

 ordinary type. Jn the collection of the late ilr. F. I'xnul is 

 one of a dark smoky-ljrown. 



On the wing from November till -lanuary. or even February, 

 according to tlie temperature of the winter, retarding or 

 accelerating its emergence. 



L.IRVA cylindrical, siuirl and stout ; head rounded, green ; 

 general colour light green ; dorsal stripe broad, darker green, 

 faintly intersected by a very slender dor.sal line of still 

 darker green : subdorsal line and a line below it white ; 

 spiraculai' line also white or yellowish-whiii-. enclosing the 

 spiraoli's, which are black ; legs and pi-olegs. and also the 

 undersurface, green. 



April and Ma}', and sometimes to the beginning of .)une, 

 on all deciduous ti'ees. but especially abundant and destruc- 

 tive upon Iruit-trees : drawing together the leaves of the 



