The distribution of malaria vector mosquitoes, especially those belonging to species complexes that contain non-vector
species, is important for strategic planning of malaria control programmes. Geographical information systems have allowed researchers to visualize distribution data on maps together with environmental parameters, such as rainfall and temperature. Here, Maureen Coetzee, Marlies Craig and David le Sueur review our current
knowledge on the distribution of the members of the Anopheles gambiae complex.