[ 249 ] 



XIII. A Revision of the Subfamily Libellulince, with Descriptions of New Genera and 

 Species. By W. F. Kikby, F.E.S., Assistant in the Zoological Department, 

 British Museum. 



Eeceived March 26th, 1887, read May 17th, 1887. 



[Plates LI.-LVIL] 



Contents. p age 



Part I. Introductory Remarks 249 



Characters of Libellulinse 250 



a. Head 251 



Eyes 251 



Prontal tubercle 251 



6. Thorax 251 



c. Legs 251 



d. Fore wings 252 



e. Hind wings 254 



/. Abdomen 255 



ff. Abdominal appendages 256 



Appendages of the second segment 256 



Appendages of the eighth segment 256 



Anal appendages 257 



Part II. Table of Genera 257 



Part III. Characters of Genera 265 



Part IV. Descriptions of New Species 314 



Explanation of the Plates 345 



PAPT I. 



Introductory Remarks. 



I HAVE lately been occupied in arranging the collection of Odonata in the British 

 Museum, a task which has only been partially attempted before, at long intervals; and, 

 while thus engaged, I have found it absolutely necessary to revise the large and 

 important subfamily Libellulinse. All the other subfamilies of Odonata have been 

 monographed by Baron Selys-Longchamps, with the exception of the iEshninse, on 

 which he is now engaged. For the arrangement of the Libellulinse our chief guides 

 are Dr. Brauer's tables and characters of genera and lists of species published in the 

 ' Verhandlungen der k.-k. zoologisch-botanischen Gesellschaft in Wien,' vol. xviii. 

 (1868), pp. 364-369 and 711-737. Of course there are local faunae and detached 

 vol. xii. — part ix. No. 1. — August, 1889. 2 p 



