1 4 INTRODUCTION. 



good preservation, the best known example of which was found at 

 Aix, in Provence, many years ago. It is considered to belong to 

 the sub-family Satyrince, and is called Neorinopis Sepulta, Boisd. 



Our Introduction may be brought to a fitting conclusion by a 

 table exhibiting the approximate round numbers of insects known 

 to inhabit the British Isles and the world. 



Orders. Britain. World. 



Coleoptera, . . . 3,000 93,000 



Orthoptera, ... 60 7,000 



Neuroptera, . . . 640 4,000 



Hymenoptera, . . 3,000 31,000 



Lepidoptera, . . . 2,000 45,000 



Hemiptera, ... 900 17,000 



Diptera, ' . . . 3,000 25,000 



12,600 222,000 



