CORDON-SANITAIRE OR LAISSEZ-FAIRE - DIFFERENTIAL DISPERSAL OF YOUNG AND OLD FEMALES OF THE MALARIA VECTOR ANOPHELES-FUNESTUS GILES (DIPTERA, CULICIDAE) IN SOUTHERN MOZAMBIQUE

The dispersal of Ailopheles funestus Giles was studied in two suburban areas 10 and 35 km south of Maputo, Mozambique, in April 1995. Popula tion densities per house differed significantly between areas. The num ber of female mosquitoes in houses decreased with distance from the br eeding site. Young pre-gravid females were concentrated close to the b reeding site. There was no correlation between the number of male and female mosquitoes in houses or between the number of males and distanc e from the breeding site. There was also no correlation between Anophe les arabiensis Patton and Ail. funestus recorded in houses. The result s are discussed in relation to the design and implementation of a cord on sanitaire for malaria control in such areas.