[7][8] External images For terms see Morphology of Diptera Metapleurae form a continuous band behind coxae 3.

Antennomere 3 twice as long as broad and wing veins tm and tp brownish.

The larva is figured by Hartley (1961)[9] The male genitalia are illustrated by Barkemeyer and Claussen (1986).

[15][16] Habitat: wetlands and alluvial forest, pond margins and fen, wet pasture, along wet ditches, around farmyards, canal banks, suburban gardens, rubbish dumps and parks.

[17] Flowers visited include white umbellifers, Achillea millefolium, Allium ursinum, Caltha, Chelidonium, Convolvulus, Crataegus, Euphorbia, Leontodon, Menyanthes, Plantago, Potentilla erecta, Ranunculus, Salix repens, Senecio jacobaea, Taraxacum.