442 INSECTS. (Cuar. XII. 
List of Ceylon Insects. 
For the following list of the insects of the island, 
and the remarks prefixed to it, I am indebted to Mr. F. 
Walker, by whom it has been prepared after a careful 
inspection of the collections made by Dr. Templeton, 
Mr. E. L. Layard, and others; as well as of those in the 
British Museum and in the Museum of the East India 
Company.! 
“ A short notice of the aspect of the island will afford the 
best means of accounting, in some degree, for its entomological 
Fauna: first, as it is an island, and has a mountainous central 
region, the tropical character of its productions, as in most 
other cases, rather diminishes, and somewhat approaches that 
of higher latitudes. 
“ The coast-region of Ceylon, and fully one-third of its 
northern part, have a much drier atmosphere than that of the 
rest of its surface; and their climate and vegetation are nearly 
similar to those of the Carnatic, with which this island may 
have been connected at no very remote period.? But if, on 
the contrary, the land in Ceylon is gradually rising, the dif- 
ference of its Fauna from that of Central Hindustan is less 
remarkable. The peninsula of the Dekkan might then be 
conjectured to have been nearly or wholly separated from the 
central part of Hindustan, and confined to the range of 
mountains along the eastern coast; the insect-fauna of which 
is as yet almost unknown, but will probably be found to have 
more resemblance to that of Ceylon than to the insects of 
1 The entire of the new species 
contained in this list have been 
described in a series of papers by 
Mr. Wavxer in successive numbers 
of the Annals of Natural History 
(1858—61): those from Dr. Tem- 
PLEToN’s collection of which de- 
scriptions have been taken, havé 
been at his desire. transferred to 
the British Museum for future re- 
ference and comparison. 
* On the subject of this conjec- 
ture see ante, p. 60. 
