Shore fly
below the soil surface, and new adults emerge after 4–5 days. Adult shore flies typically live between 2–3 weeks after eclosion. [...] Life cycle and appearance of the Shore fly Adult Scatella shore flies are 4–5mm long with large eyes, thick bodies and short antennae, and their wings [...] 5 mm long and with prominent rear breathing tubes, emerge from the eggs 2–3 days later. These maggots live in and just beneath the algal crust growing