Length: Fly in photo 19 mm
This distinctive species has spread worldwide, into both temperate and tropical areas. Larvae develop in a variety of substrates, including manure, carrion, and rotting plants.
The larvae are commercially raised for use in breaking down manure—they can reduce accumulations by 50%, while also making what remains less "hot" (less nitrogen-rich). The larvae are also used to reduce piles of coffee bean pulp, and in Brazil they are sold as a popular bait for fishing called "boro."
Photo location: Novo Airão, Amazonas state, Brazil.
American Insects site