In the present study, the first two species preferred larval habitats with sandy bottom (55.7% and 62.5% respectively) and the third species preferred larval nests with muddy bed (54.8%). But in the study of the ecology of mosquitoes in the County of Rasht[19], larval nests of An. maculipennis complex were reported with muddy bed, and often plot of rice cultivations and irrigation channels of the farms that confirms the findings of this study.