Keller, S. (1997). The genus Neozygites (Zygomycetes, Entomophthorales) with special reference to species found in tropical regions. - Sydowia 49(2): 118-146. Several collections of mites (Acari: Tetranychidae, Phytoseiidae), mealybugs (Homoptera: Pseudococcidae) and aphids (Homoptera: Aphididae, Lachnidae) infected with Entomophthorales mainly from West Africa, South America and the Philippines were examined. All fungi found on Tetranychidae including the green cassava mite, Mononychellus tanajoa, were assigned to N. floridana. Species found on the phytoseiid Euseius citrifolius were identified as N. acaricida comb. nov. and N. cf. acaridis, respectively. All material from mealybugs (Rastrococcus invadens and Coccidohystrix insolita) was identified as N. fumosa. An emended description of this species is given. The fungi from Aphis craccivora and A. fabae were identified as N. fresenii. A new species, N. cinarae attacking the lachnid Cinara pilicornis, is described. The life-cycles of N. floridana and N. fresenii are described and compared. A key to all known species and a short characterisation is provided.