Anthomyiidae is a large and diverse family of Muscoidea flies. Most look rather like small houseflies, but are commonly drab grey. The genus Anthomyia, in contrast, are generally conspicuously-patterned in black-and-white or black-and-silvery-grey. Most are difficult to identify, apart from a few groups such as the kelp flies that are conspicuous on beaches. The name Anthomyiidae was derived from Greek "anthos" (flower) plus "myia" (a fly).