PREFACE. Vli 



terms " common," " rare," &c., have reference chiefly to the 

 southern counties of England. The time of appearance is given 

 where it is known. 



The list of "Eeputed British Species" contains the names of such 

 as have been quoted as indigenous by various authors, but of which 

 we have seen no authentic examples. Some of the species may 

 possibly hereafter prove to be British, but the names of others 

 appear to have been introduced in error. 



Our best thanks are given to Dr. Fieber for the invaluable 

 assistance he has rendered in the determination of doubtful species, 

 and for the great courtesy and readiness with which he has devoted 

 much time and trouble to the difficult points submitted to him. 

 We also express our obligations and return thanks to all those 

 gentlemen who have assisted us by the loan of books and the loan 

 and gift of specimens, for without their help this work could not 

 have been accomplished. "We shall be rewarded for our labour if we 

 find that it induces collectors to acquire and study the neglected 

 British Hemiptera. 



The plates illustrating the general structure and the genera have 

 been engraved by Mr. E. W. Eobinson, in his usual artistic style, 

 and require no commendation. 



We hope hereafter to produce a volume on the British Hemip- 

 tera-Homoptera. 



Lee ; June 23rd, 1865. 



