Shore fly
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 on algae, bacteria [...] stages and then pupate inside the final larval skin (forming a protective puparium). The puparia can be found on or just below the soil surface, and new adults [...] 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