Fossil Diptera cat. There are over 250 described living and fossil species in almost 20 genera. Adults of extant forms are found often at flowers. Larvae have been recorded from a variety of habitats including manure, decaying plant matter, carrion, compost, and moist leaf litter.
Some larvae are commensals and breed in the detritus of the nests of leaf cutting ants.
In addition to the determined taxa listed below, Grimaldi et al .