142 
Malaria in Ceylon 
I have also received considerable assistance from Major S. P. James. 
He has confirmed, and in many cases corrected, my diagnosis of the local 
anopheline mosquitoes. 
In considering this report it must be borne in mind that the weather 
was abnormally dry at the time of my visit, consequently the paddy 
fields lay fallow; there were very few mosquitoes and little, if any, actual 
fever. The results, however, may be considered of some scientific 
value as indicating the condition of affairs when the town is free from 
epidemic malaria. 
I wish to express to Dr S. P. Gunasekara my gratitude for the assis-« 
tance he has afforded me in this enquiry. 
The local anopheline mosquitoes. 
The main species of anopheline mosquitoes found by me in Kurune- 
gala, in order of their frequency, are as follows :. 
(1) Myzorhynchus harhirostris. 
(2) Myzomyia rossii. 
(3) Myzorhynchus sinensis. 
(4) Myzomyia culicifacies. 
(5) Myzorhynchus fuliginosus. 
(6) Myzorhynchus jamesi. 
(7) Myzomyia punctulata, an uncommon species in Kurunegala. 
(8) Myzomyia alhirostris, only three' or four specimens were bred 
from larvae collected in the paddy fields. 
(9) Nyssorhynchus maculatus, a rare species in Kurunegala, bred 
from larvae obtained in a swift-flowing stream behind the Government 
Agent’s house. 
(10) Myzomyia listoni, only one specimen obtained. 
Thus, out of ten species of Anopheles found in Kurunegala, six have 
been proved elsewhere, mostly in Malaya and in India, to be conveyers 
of malaria. Of the known malaria carriers, Myzomyia culicifacies was 
by far the most abundant species. 
Adult anopheline mosquitoes have been found in houses in Kurune¬ 
gala and in various bungalows in the town during the daytime by 
Gunasekara. They were mostly specimens of M. harhirostris and 
M. sinensis. The railway station bungalows, where malaria is so 
prevalent, have often been searched by Gunasekara, without result. 
