ABSTRACT
Five species of mosquito larvae were encountered in Greater Cairo including Culex pipiens, Cx. pusillus, Cx. perexiguus, Aedes caspius and Culiseta longiareolata. In areas of Qalyoubia Governorate, Cx. pipiens was the most dominant and the least was Cx. perexiguus. In areas of Giza Governorate, Cx. pipiens was the most dominant and the least was Cs. longiareolata. In Cairo Governorate, Cx. Pipiens was the most dominant and the least was Ae. Caspius. The overall abundance in a descending order was Cx. Pipiens [61.74%], Cs. longiareolata [15.56%], Ae. caspius [15.3%], Cx. pusillus [4.0%] and Cx. Perexiguus [3.16%]. However, in all sites, Cx. pipiens was more abundant in December than in August. The difference in the number of Cx. pipiens in one hand and all numbers of larvae collected on the other hand was nonsignificant