Shore fly
appearance of the Shore fly Adult Scatella shore flies are 4–5mm long with large eyes, thick bodies and short antennae, and their wings can have greyish brown [...] Asia, the species Scatella stagnalis occurs widely. These small black flies can be found naturally at marshy, muddy lake shores and intertidal zones, and [...] matter on planting substrate. Growers consider shore flies to be mostly a nuisance pest, but the insects can act as vectors for disease organisms, such as Fusarium