PEE FACE 



The object of the present Gata^pgne is to. give a complete List of 



V '>/\ x: '■ r , 

 all the genera and species of Heteropterous ,-Hem^tpra known to 



^- *, ■ 



exist in the collections of Europeail and American Entomologists. 



■'■'■-a, '" ■ * -• 



The letters a,b, c, &c., afte'^^ie species, denote the specimens now 



'. • "''-'i ■ • jC ♦ 



contained in the British Mu'gSijm, ^oW?a^6y*ifho Jidbitat and the 



mode in which each of them was obtained ; and the absence of 

 these letters indicates the species which are desiderata, and there- 

 fore desirable to be procured for the collection. 



J. E. GRAY. 



British Museum, 



. Ut October, 1867. 



