iv 
PREFACE. 
from the collections of the Hon. F, M. Mackwood and of Mr. and Mrs. T, B. Butt, while 
Major J. AV. Yerbury presented the whole of his Trincomali collection. Mr. Hampson, 
the autlior 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 Mr. Green's donation was greatly enhanced by a series of beautiful 
draAvings illustrating the metamorphoses of many of the species observed by him. Such as 
have not been already figured by Mr. Moore, arc 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 witli the following particulars : — 
" ]\Ir. Green has collected chiefly in the 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 liill-districts of Southern 
India, whilst its highest point, the Newera-Elyia plateau with an elevation of over 6000 ft., 
has a somewhat isolated fauna with slight Paljearctic affinities. This Central Province is the 
best known part of Ceylon, and has been cai-efully M'orked 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. Butt collected in the low-lying Kelani 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 Felder being here rediscovered." 
