Shore fly
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 [...] 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 [...] greenhouse pest found throughout the United States, Canada and northern Mexico. In Europe and Asia, the species Scatella stagnalis occurs widely. These small