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 [...] However, they are considered a nuisance pest because the flies: Leave their feces (as black flecks) on the foliage of ornamentals or food crops, causing cosmetic [...] 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