SURVEY OF MOSQUITOES IN NORTH SUMATRA, INDONESIA1

During a Z-week period in February-March 1972, a total of 58 species of mosquitoes was collected from several localities in North Sumatra Province, Indonesia. Among the species collected, 27 had not been previously recorded for the province, 13 were new to the island of Sumatra and 5 were new to Indonesia. Dissection of 262 anopheline and 348 non- anopheline mosquitoes for plasmodial and filarial infections revealed 7 Mansonia uniformis with Brugia malayi larvae. During the period 19 February-2 March 1972, a field investigation was carried out in the North Sumatra Province of Indonesia to determine the mosquito fauna in the area and the vector species for malaria and filariasis in selected localities. The localities covered were of 3 topographic types: mountain (elevations of 500-l 000 m), plain (elevations of 5-20 m, 5-20 km from the coast) and coastal regions. The sites were Bakal Djulu (500 m), Sidikalang (800 m) and Sumbul Pegagan (1000 m) in Dairi Regency; Ambarita (900 m) in Tapa- nuli Utara Regency; Prapat (900 m) in Simalungun Regency; Kebon Lada (5 m) in Langkat Regency; Medan (20 m) in Municipality of Medan; Tand- jung Balai (5 m) and Bagan Asahan (sea level) in Asahan Regency; and Labuhan Deli (sea level) in