The blood incubation infectivity test: a simple test which may serve to distinguish Trypanosoma brucei from T. rhodesiense.

breeding habitats of Culex and Anopheles were chemically distinct, in a few casesthese mosquitos were also found to breed along with Aedes species where the chemical make-up of the water was somewhat different. However it is not certain whether these chemical differences alone are responsible for differences in species breeding (Peterson & Chapman, 1969). The differences observed may be partly due to the amount of mosquito breeding which might have taken place previously in the sites sampled, although whether this influences the ovipositional preference of the mosquitos has yet to be proved conclusively.