fil^^ 



INTRODUCTION. 



The principal object of the present Catalogue has been to 

 give a complete hst of the specimens of Homopterous Insects 

 contained in the collection of the British Museum, indicatuig 

 at the same time the peculiarities of each, as regards variation 

 of cliaracter, locaHty, and the source from whence it has been 

 derived. With this \dew, the different individuals of each 

 species contained in the collection ai'e indicated by the letters «, 

 h, G, &c., foUowing the name of the species and its synonymes, 

 and the description, if it appeared to have been before un- 

 described. 



This part of the Catalogue of Homopterous Insects has 

 been prepared and the new species described by Mr. Feancis 

 Walkee, so weU Imown for his attention to tins order of 

 Insects. 



The remaining part is in hand, and wiU follow as soon as it 

 can be completed. 



JOHN EDWARD GRAY. 



British Museum, 



Oct. ^OtK 1851. 



