Cerodontha dorsalis and C. occidentalis
Pest description and crop damage Adult is a tiny fly, 0.18 inch long, dark with yellow on the head, body, and legs. Adults make feeding punctures on leaves. Larvae mine in leaves.
This insect has been found in wheat and barley and is reported to feed on a wide variety of grasses. This insect is not known to cause injury to wheat or barley.
Insecticides are not recommended.