rKEFACE. 



This volume completes Mr. Kirby's arduous work in compiling 

 a Catalogue o£ the Orthoptera. Its preparation has occupied 

 a considerable part of the last three years, but has been 

 frequently interrupted by the numerous other duties the author 

 has been called on to perform. A glance at the synonymy 

 and at the multitude of references will be enough to show how 

 great has been the labour involved in the preparation of the 



Catalogue. 



SIDNEY F. HARMER, 



Keeper of Zoology. 



Biutish Museum (Natural History), 

 London, S.W. 



March 3rd, 1910. 



