2 Colonel C. Swinhoe's Descriptions of Neio Species of 



to the Indo-Malayan region, has resulted in the publication 

 of this paper, which clears up many doubtful points, and 

 will be, I trust, of assistance to future workers. 



I have had copies made by the well-known artist, Mr. 

 Horace Knight, of all Plotz's Indo-Malayan species ; copies 

 have been made for the British Museum of the Africans, 

 and by Mr, F. Du Cane Godman of the Americans. I have 

 not said anything in this memoir about the Australian 

 examples, because Mr. Oswald Lower, of Broken Hill, New 

 South Wales, is working out the Australian Hesperidie, 

 and I have sent to him copies of all Plotz's figures. 



In this paper I have followed the British Museum 

 classification, which is based on Watson's, and I do not 

 know what I should have done without Mr. Heron's kindly 

 assistance, and I have to tender to him my grateful thanks 

 for the free use of all his numerous manuscript notes on 

 the Family. 



I have taken notice of only one or two African Hesperidm, 

 Dr. Holland having worked out Plotz's species from that 

 region in certainly the best Hesperid memoir that has 

 ever been published, in the opening pages of P. Z. S., 1896. 



The memoir by Elwes and Edwards in Trans. Zool. Soc, 

 xiv (4) (1897), has been of much assistance to me. 



I have given generic names, for the sake of convenience, 

 to all the generic sections into which they are divided in 

 the National Collection ; whether they are good genera or 

 only sections of genera is to me a matter of small import- 

 ance. Classification must always be more or less arbitrary ; 

 its chief object is facility to workers, and it is much easier 

 in a large museum collection to find an insect for examin- 

 ation Avhen the species are arranged in named sectional 

 groups, than it is to search drawer after drawer in a large 

 genus of many species. 



RHOPALOCERA. 



Family HESPERID^. 



Sub-family HESPERIIN..^. 



CASYAPA, Kirby, Cat. Lep., p. 576 (1871), type corvus, 



Felder. 

 Ch^tocneme, Felder, Sitzb. Ak. Wiss. Math. Nat. CI., 



vol. xl, p. 460 (1860) (prajocc). 



