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LEPIDOPTERA. 



Notes on new and rare British Lepidoptera (ex- 

 cepting TiNEiNAJ in 1866. 



By H. G. Knaggs, M.D., F.L.S. 



Notwithstanding the almost incessantly adverse atmo- 

 spheric conditions of the past season, considerable gratifica- 

 tion is derivable from the fact that several very interesting 

 additions tfe oiii' moth-fauna have been put upon record : and 

 not only this, but as we review these discoveries, it strikes 

 us that the entomological capabilities of these British Isles 

 are by no means exhausted, and certain wholesome, but 

 hitherto too generally disregarded, suggestions are con- 

 vincingly forced upon us. For example, in the first place, 

 the occurrence of Dianthoecia ccesia and Pempelia suborna- 

 tella, accompanied by several unexpected rarities, in the Isle of 

 Man, teaches us the advisability of extending our somewhat 

 limited field of observation by mapping out and working 

 new hunting-grounds, especially such as are insulated, and 

 may therefore be suspected of possessing some characteristic 

 peculiarity in their fauna. 



In the second place, by the occurrence of Aplasia ono- 

 naria, (not only a species, but a genus new to Britain,) in 

 the Folkestone Warren, at a time of year when collectors 

 are wont to desert that much favoured watering-place, we 

 should be encouraged to prosecute our investigations, even 

 in well known localities, at other seasons than such as are 



