JOURNAL OF ENTOMOLOGY. 



No. II.— October 1860. 



VI. — Descriptions of new Genera awl Sjyecies of Exotic Hymenoptera. 

 By Feederick Sjtith, Esq., Assistant in the Zoological Depart- 

 ment of the British Museum. 



Since the publication of the ' Catalogue of the Formicidce^ in 1858, 

 I have described nearly two hundred new species belonging to that 

 family, the whole being inhabitants of the Eastern Archipelago. I 

 have not described, since the above period, any Ants fi'om other 

 localities; the consequence has been, that many interesting and 

 some remarkable species have accumulated which are new to science ; 

 a portion of these I purpose describing in the present paper, and 

 also figuring some of the more remarkable forms. I hope to add 

 additional interest to my work, by compiling a series of observations 

 on the habits of some of the species, from notes made on the spot by 

 Mr. H. "W. Bates, who has in so many ways added greatly to our 

 knowledge of the entomology of Brazil. 



I think it ■utU be readily admitted that no family in the Tvide 

 range of the Insect world contains species which present such a 

 wonderful diversity of forms as are to be found amongst the Formi- 

 cidoi ; so great is it, indeed, that nothing short of actual observation 

 could possibly lead the entomologist to suppose, in many instances, 

 that any relationship existed between the different members of the 

 same community. In my correspondence with both Messrs. Wallace 

 and Bates, I have always impressed upon them the importance of 

 collecting these insects from their nests, or under such circumstances 

 as would warrant their being considered sexes of the same species ; 

 to my request both these gentlemen have most willingly responded. 

 A few species obtained under such conditions, arc of more real ento- 



VOL. 1. F 



