The adults can be found around Allium species when the plants are in flower (May–June).

The larvae tunnel through and overwinter in the bulbs of this plant.

[2] External images For terms see Morphology of Diptera Tergites 2-4 with grey spots.

See references for determination[3][4][5][6] Palearctic Southern Norway to North Spain.

[7][8] It can be found in the following countries: Austria, Belgium, Czechia, Denmark, France, Germany, Ireland, Italy, Liechtenstein, Montenegro, Netherlands, Norway, Poland, Romania, Slovakia, Spain, Sweden, Switzerland, Ukraine and the United Kingdom.