PREFACE. 



The object of the present Catalogue is to give a complete 

 list of all the known genera and species of Ants (For- 

 MiciDJs), including those which have been previously re- 

 corded, together with descriptions of such as appear to be 

 hitherto undescribed. 



Tlie letters B.M. in the margin indicate the species 

 contained in the Collection of the British Museum. 



JOHN E1)\YARD GRAY. 



1st March, 1838. 



