Malaria is an important mosquito-borne disease in Tihama lowland areas of Saudi Arabia and the health authority is currently, adopting a national policy for malaria elimination. Due to scarcity of information on the ecology of larval population of mosquito vectors in this area, the present study was conducted in an attempt to provide updated knowledge on this aspect in the study area. The study was conducted in 3 ecologically different strata known as malaria endemic in Tihama lowland. The larval ecology was studied over a 24-month period and a total of 7712 mosquito larvae were collected...