Agathomyia falleni is a species of fly belonging to the family Anthomyiidae. It is commonly found in North America and Europe. This insect is small in size, measuring around 5-7 mm in length, and has a shiny black body with distinctive yellow markings on its abdomen. Agathomyia falleni is known to be associated with decaying organic matter and can often be found near compost piles or rotting vegetation.