Ditaeniella grisescens is a species of fly in the family Sciomyzidae. It is found in the Palearctic.-Long. : 3.5âÂÂ4 mm. The body is short, narrow, obscure above, with a rather thick yellowish ashy pruinosity. The legs are rufous with tibiae 1 and their tarsi browned. Wings clear: the subcostal cell yellow. For terms see Morphology of Diptera.