Distribution of Aedes mosquitoes in eight regions of Madagascar. Empty triangle Aedes albopictus and empty circle Aedes aegypti in the 1980s (Ravaonjanahary, 1978; Fontenille et al., 1989). Filled triangle Aedes albopictus and filled circle Aedes aegypti at the end of 2009 (this study). Encircled symbols highlighted changes in species distribution. Black filled square, town. Mosaic square, forest areas.