• iv PEEFACE. 



from the collections of the Hon. F. M. Mackwood aud of Mr. and Mrs. T. B. Butt, while 

 Major J. W. Yerbmy presented the whole of his Trincomali collection. Mr. Hampson, 

 the author of the preceding part of the ' Illustrations/ offered his services for the investi- 

 gation of these materials and the preparation of the present part. 



The value of j\Ir. Green's donation was greatly enhanced by a series of beautiful 

 drawings illustrating the metamorphoses of many of the species observed by him. Such as 

 have not been already figured by Mr. Moore, are reproduced here on two of the plates. 



With regard to the localities where the collections mentioned above have been made, 

 Mr. Hampson has supplied me with the following particulars : — 



" !Mr. Green has collected chiefly in tlic Central Province, which has an elevation of 

 some 3000 ft., and was once covered with forest. However, this has been almost entirely 

 cleared away to make room for coffee-plantations, which in their turn have given way to tea. 

 The fauna of this region is closely akin to that of the forested hill-districts of Southern 

 India, whilst its highest point, the Newera-Elyia plateau with au elevation of over 6000 ft., 

 has a somewhat isolated fauna with slight PalEearetic affinities. This Central Province is the 

 .best known part of Ceylon, and lias been carefully worked for many years. Its Heterocera 

 were very fully represented in Mr. Green's collection, particularly as he had been able to 

 select also from the species taken by Mr. J. Pole, F. B. Armstrong, and others. 



"The Hon. F. M. Mackwood collected chiefly in the same planting districts, and also 

 largely in the low-lying forest district of S. Ceylon which has a somewhat peculiar fauna, 

 in Colombo and the Northern Province, the fauna of which is similar to that of the 

 Indian plains, 



" Mr. and Mrs. T. B. lUitt collected in the low-lying Kclani Valley of the southern 

 forests; whilst Major Yerbury worked at Trincomali on the E. coast. This district has a 

 special interest, offering marked affinities with the fauna of the Andamans as well as with 

 that of Peninsular India. It had never been touched except by the collectors of the ' Novara,' 

 most of the Ceylon species described by Fcldcr being here rediscovered." 



