Dictya umbrarum

Dictya umbrarum  is a species of fly in the family Sciomyzidae. It is found in the Palearctic and Nearctic. Long. : 4-5 mm. Intensely spotted wings.The interocular space with a black mark at the anterior orbital.The face is white with a black or brown central point. The antennae are reddish, the arista yellow at the base.The body is black (au fond) covered in a grey yellow pruinosity with shifting (changeant) brown spots on the abdomen.The femora are grey with a brown apical band.The tibia are yellow with a brown apical ring (anneau). For terms see Morphology of Diptera. Dictya montana is a predator of aquatic pulmonate snails with no apparent parasitoid tendency.