Shore fly
live in and just beneath the algal crust growing on top of the soil/medium, where they feed on algae, bacteria, yeasts and other microorganisms. In 3–6 [...] General Shore flies of the genus Scatella are a common greenhouse pest found throughout the United States, Canada and northern Mexico. In Europe and Asia, [...] 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