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ABSTRACT
In 1984 and 1985, a fungus was observed parasitizing larvae of Aedes kochi collected from leaf axils of Colocasia sp. in a rainforest in Queensland, Australia. In axenic culture, the fungus produces singlecelled, cylindrical and cuneiform conidia which are borne in slime from subulate phialides. Based on its development of conidia of two types, its parasitism of mosquito larvae, and its underwater conidiation, the fungus is described as the new species, Culicinomyces bisporalis. The fungus is compared with similar fungi belonging to several genera. Tolypocladium parasiticum Barron, the only species of Tolypocladium known to produce conidia underwater, is also shown to produce conidia of two types, and is redisposed as Culicinomyces parasiticus Sigler, comb. nov. Tolypocladium is maintained as a genus distinct from Beauveria.