Abstract: Predation capacity of Culiseta longiareolata larvae against Aedes caspius, Anopheles multicolor and Culex pipiens mosquito larvae were studied under laboratory conditions. Both the predator and the preys mosquito larvae were field collected and the preys larvae were subjected to 4th instar predaceous larvae for 24 h bioassays. Bioassays revealed that Cs. longiareolata larvae preyed upon all mosquito species larvae but their predation capacity was correlated with prey instar, stage and species.