CLASSIFICATION. 



53 



It will be seen by the above list that seventy species 

 are given as British. 01 these, five species, viz. Papilio 

 Podalirius, Erebia Ligea, Argynnis Dia, Chrysophanus 

 Chryseis, and Polyommaius Boeticus, have been so rarely 

 taken as to be refused a place among the regular denizens 

 of our island. So that we can only reckon up the small 

 number oi sixty-five speties of true British butterflies. 



These it now remains to describe individually, but, 

 prior to entering on that task, I would say a few words 



