TRIFIDJE. 231 



more extended ; sometimes, indeed, the markings and centre 

 of the band are almost blackened, and the costa often dotted 

 with black-brown. 



From this district southward, along the west coast more 

 especially, various intermedia,te forms are found, having the 

 ground colour sometimes ochreous, or yellow-brown, or pale 

 brown, with all possible variations of shade of markings, 

 which, however, are always more or less present, and usually 

 very definite. 



From larvee found on the south coast of Pembrokeshire 

 Mr. W. F. H. Blandford has reared, along with the last 

 mentioned, specimens ranging darker in every degree until 

 the warm colouring of the ground colour is lost in a dull pale 

 umbreous or whitish brown, but the central dark band and 

 the other cloudings and markings are deep rich brown, black- 

 brown, and in one or two individuals nearly black, and so 

 completely pervade the fore wings that the paler ground 

 colour is limited in some to the upper stigmata, the subter- 

 minal line and the j)ale patch before the anal angle ; but in 

 others, as in the Scotch specimens, the pale brown of the 

 last-named patch is continued up and bent inward, so that it 

 unites with the two pale stigmata. 



Some of these specimens of Mr. Blandford's completely 

 cross the line of demarcation in colour which formerly 

 separated the form found on the coasts of Ireland and the 

 Isle of Man from the present, as a supposed distinct species, 

 under the name of capsoijMla. These are so strikingly 

 different from the ordinary carp(yphaga of the South of 

 England that it is difficult to realise that all are but one 

 species, and indeed this is not, even now, universally 

 admitted. The difference in tone of colour and in sharpness 

 and darkness of markings is so great as to give an impression 

 of a different shape of the ivinrjs, which, however, does not 

 exist. In this last range of forms — called var. capsophila — 

 the ground colour, when visible, is usually white or greyish- 

 white, more rarely pale greyish umbreous or brownish-white ; 



