Distribution of Lepido})tera. 495 



The great numerical superiority of the English over the 

 British type is no doubt due to the very imperfect explo- 

 ration of the north of Scotland^ and^ as our knowledge 

 increases, many species will have to be transferred from 

 the former to the latter ; though even were our informa- 

 tion complete, the English type would probably be found 

 to maintain a considerable superiority, owing to the 

 conditions which exist in the north of Scotland being 

 apparently less favourable to insect life than those of the 

 more southern parts of Britain. 



There are a few instances in which species of Diurni 

 have been referred to different types from those to which 

 Messrs. Boyd and More assigned them in their paper on 

 the " Geogra]5hical Distribution of British Butterflies," in 

 the Zoologist for 1858. 



1. Argymiis Lathonia has been transferred from the 

 Germanic to the English type, principally from having 

 occurred in Ireland. 



2. Pieris Daplidice seems to belong more naturally to 

 the English than to the Germanic type, having occurred 

 in sub-provinces 3 and perhaps 14. 



3. Lyccena Corydon. The occurrence of this species 

 in sub'provinces 3, 13, and 25, must, I think, bring it 

 under the English in preference to the Germanic type. 



