on BORXEAN DIIAGONFLIES. 



311 



17. Contributions to a Study o£ the Dragonfly Fauna of 

 Borneo. — Part ly. A List o£ Species known to occur 

 in the Island. By F. F. Laidlaw, M.A.(( Jantab.), 

 F.Z.S. 



[Received April 9, 1920 : Head April 27, 1920.] 



(Text-figures 1-4.) 



I have attempted in the following list to cntalogue all species 

 of Dragonflies which have been recorded from Borneo, or which 

 are otherwise known to me to occur in the island. 



In the case of some species I have added notas that may, I 

 hope, be of service to others who may deal with this fauna. 



In addition to records already available iri the litei-ature of the 

 order O.lonata, I have been able to compile my list from the 

 examination of the large amount of material sent me by Major 

 J. C. Moulton whilst Curator of the Sarawak Museum. Some of 

 this material has already been dealt with, as noted in the 

 references to literature ; and Major Moulton's tyi^e specimens 

 are, unless otherwise noted, deposited in the British Museum. 

 Where possible, paratypes have been sent to the Sarawak 

 Museum. 



I have also been able to examine a collection sent to me nearl}- 

 twenty years ago by Dr. C. Hose from the Bara.m district. 



References to specimens examined deal in every case with 

 Major Moulton's material unles> otherwise stated. 



His localities are in the territory of Sarawak, with the following 

 exceptions, which are in British North Borneo : — Mt. Kinabalu, 

 Tampassuk (River), and Kliotabelud. 



In order to avoid undue prolixity in the list, I have given 

 references chiefly, if not entirely, to faunistic and systematic 

 papers. For the LiheUidmce 1 have thought it necessary to quote 

 only Dr. Ris's Monograph of the subfamily, refen ed to in the 

 sequel as " Ris, Cat. Coll. Selys, Libell." ('Catalogue Systematique 

 et Descript. Collections Zoologiques du Baron Edm. de Selys- 

 Longchamps,' Fasc. ix.-xvi., Libell ulina'). Tlie publication of the 

 Monograph v/as completed in 1919, and it contains a very full 

 synonymy of all the Bornean species. 



For the Gomjyhince and Chlorogoirqyhhm I give reference only 

 to my previous paper on the group (these Proceedings, 1914, 

 pp. 51-63, pi. i.), where citations of recent papers are to be found. 



Index. 



I. Introduction 



II. I^ist of Species 



III. Some Reiiiarks on Geographical Distribution 



Page 

 311 

 312 

 341 



1. Introduction. 



