Shore fly
other microorganisms. In 3–6 days, they pass through three larval stages and then pupate inside the final larval skin (forming a protective puparium). [...] flies of the genus Scatella are a common greenhouse pest found throughout the United States, Canada and northern Mexico. In Europe and Asia, the species Scatella [...] muddy lake shores and intertidal zones, and they breed readily in other moist environments. In greenhouses, adults feed on algae and their larvae on algae