LARENTID.fl—F.MMEI.F.SIA 227 



marginal region rippled with pale smoky-grey and white ; 

 cilia white, intersected by a grey line. Female similar. 



Underside dark smoky-grey, the white rivulet and sub- 

 terminal line indicated and rather white upon the costa. 

 Hind wings very pretty, white abundantly dusted with 

 grey, except the central band, which is whiter and edged by 

 darker grey lines ; central spot small, dark grey ; hind 

 margin rippled with smoky-grey. Body and legs grey- 

 brown. 



In most places only a little variable in the number and 

 colour of the transverse stripes, which range from faintly 

 grey-black to pale brown, and in the latter case are sometimes 

 suffused. But in tlie collection of the Rev. Joseph (Tveene 

 is a specimen in which tiiey are reduced to the faintest 

 possible brownish clouds on white ground. In the Shetland 

 Isles these stripes are in some specimens much more accen- 

 tuated, formincf distinct and rather handsome bands, the 

 central baud more especially distinct ; but in other cases have 

 the bands almost or totally obsolete, while the ground colour 

 of the fore wings has become of a shining pale olive-brown, 

 sometimes almost leaden-brown ; and the hind wings dark 

 smoky-brown or smoky-grey. Specimens also occur having 

 the olive-l)rownor grey-brown ground colour, with the stripes 

 (li^tiiid. and sharply marked ; and there is also every possible 

 intermediate gradation. It is singular that no tendency 

 towards this range of variation is observed in specimens from 

 the Orkneys or the Hebrides ; but from the latter isles a 

 considerable proportion of the specimens obtained have the 

 fore wings white, almost without a trace of marking's, and 

 often of a remarkably pure white. This variety is well 

 defined, and was named by Mr. J. J. Weir, var. IhltinViiim. 



On the wing at the end of May and in June, and occasionally 

 a very partial second generation at the end of August and in 

 September. 



Lakva. Head rounded, narrower than the l)ody, intensely 



