Shore fly
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 [...] soil, pots, benches, and other surfaces and the female disperses her tiny (0.1 mm) eggs on the surface of the plant growing medium. Short, leathery, tra [...] breathing tubes, emerge from the eggs 2–3 days later. These maggots live in and just beneath the algal crust growing on top of the soil/medium, where they feed