Flies of the family Phoridae are sometimes called coffin flies or scuttle flies Approximately 3,000 species in 230 genera occur worldwide, most of which are found in the tropics. Information on North American species can be found in Borgmeier. Phorid flies are frequently found around flowers and moist decaying material. They are most active at exposed human remains after butyric fermentation has begun and when the corpse is starting to dry.
Credit to: MALLIS HANDBOOK by Dr. Hanif Gulmahamad