Chlorops pumilionis is a species of pest fly from the family Chloropidae. It is also known as the chloropid gout fly or barley gout fly. It is an oligophagous pest of cereal crops.[1]
The thorax is straw yellow, with three longitudinal nodal stripes. The head has black ocular triangle. The third antennal segment and two last segments of tarsus are black.[1]
The fly is widespread in South, North, Central Europe, North America, Africa, and Japan.[1]
The gout fly damages 18 species of cultivated and wild cereal plants, wheat, barley, rye, oats, timothy grass and couch grass.[1]