Entomophthoromycota is a division of kingdom fungi. In 2007, it was placed at the taxonomic rank of subphylum in the most recent revision of the entire fungus kingdom. In 2012, it was raised to the rank of phylum as "Entomophthoromycota" in a scientific paper by Richard A. Humber 2012. Divided into three classes and six families (Ancylistaceae, Basidiobolaceae, Completoriaceae, Entomophthoraceae, , and ), it contains over 250 species that are mostly arthropod pathogens or soil- and litter-borne saprobes.