2 PREFACE 



Alps ; but I have not included this area in the 

 book, as the whole fauna of those places is not 

 met with here. 



The localities mentioned are those, for the 

 most part, in which I myself have found 

 certain insects, but it does not by any means 

 follow that the species do not occur in other 

 spots. I have purposely avoided the use of 

 synonyms in dealing with the butterflies (except 

 in a few cases), as not being within the scope 

 of the present work ; but have appended a list 

 of food-plants with their English names, at the 

 end of the book. 



The Butter (lies of the Riviera is not primarily 

 a descriptive manual, but merely a catalogue 

 of species occurring in the district; descriptions, 

 except in rare instances, where they are not 

 usually to be found in the books, or in the case 

 of some of the more interesting varieties , 

 therefore, as well as tables for the determination 

 of genera and species are omitted. 



Some new matter will be found on the habits 

 &c., of certain larvae not generally met with in 

 previous treatises, as, for example, in the 

 description of the early stages of Erebia 

 Neoridas. 



A special feature will be made in dealing 

 with the early life-history of species. 

 The two former of the rudimentary stages, 



