INTRODUCTION. 



The principal object of the present Nomenclator has been 

 to give a list of the various Insects of the Orders Ano- 

 plura, Euplexoptera and Orthoptera that have been 

 recorded as found in the British Islands, with their prin- 

 cipal Synonyms. 



It is intended for the following purposes : — 



As a Complete List of the species recorded as found in 

 the British Islands. 



As Labels for the Cabinet, for which purpose it has been 

 printed in a peculiar type and only on one side of the paper. 



The Collection contains almost every species in the list, 

 and it consists of the type specimens described chiefly in 

 the works of Messrs. Denny and Stephens. 



The Nomenclator has been prepared by Mr. Adam White, 

 chiefly from Mr. Denny's work on the British Anoplura, 

 and Dr. Fischer's work on the European Orthoptera. 



JOHN EDWARD GRAY. 



5th Nov. 1855. 



