Published online by Cambridge University Press: 10 July 2009
Tambunan is an elevated and isolated plain in the interior of North Borneo, occupied by irrigated paddy cultivation, surrounded by jungle-covered hills, and inhabited by a primitive native population subject to severe malaria.
The Malaria Research Department of North Borneo carried out surveys in this locality during 1939–42 for larval and adult Anopheles as part of an investigation into the causes and control of malaria in Borneo. The main findings of this work, and the incrimination of A. leucosphyrus, Dön., as a vector of malaria, have been described elsewhere (McArthur 1947), but brief accounts are given below of the habits and characteristics of the Anopheles in the locality.