A study had been conducted to determine several pathogenic fungi to mosquito larvae from several ditchs in South Jakarta. A number of 24 general of fungi consisting 42 isolators were able to be isolated from 5,438 mosquito larvae. They were cultured in Sabouraud dextrose agar media. Fungi which were found in all instar of Cx. quinquefasciatus were Blastomyces sp (0.44); Culicinomyces sp (0.44);…