Geomyza tripunctata
Geomyza tripunctata is a species of fly in the family Opomyzidae. It is found in the Palearctic.
May to November. A herbicole found in grassland and cereal fields. Common throughout Europe. Norway and Lapland Siberia. Algeria.Tunisia. Found up to 2.300 m.. The larvae tunnel in the stems of grasses and cereal.