in order to study the mosquito fauna of iran, and to prepare the temporal as well as the spatial distribution of the iranian mosquitoes, a comprehensive study has started since 1981. in this program in which more than 60.000 mosquito larvae, from different breeding sites has been studied, 15 species of culex are reported. these are;cx. arbieeni, cx. bitaeniorhynchus, cx. deserticola, cx. horten...