Rare. More common before 1950, no trend since. Open, wet areas, mostly on clay soil. Most recent records from floodplains, older records also from peat and fen areas. Possibly correlated with seepage.

Bron

Auteur(s)

Smit, J.T.

Publicatie

• Reemer, M., Renema, W., Steenis, W. van, Zeegers, Th., Barendregt, A., Smit, J.T., Veen, M.P. van, Steenis, J. van & Leij, L.J.J.M. van der 2009. De Nederlandse zweefvliegen (Diptera: Syrphidae). Nederlandse Fauna 8: 1-442. Nationaal Natuurhistorisch Museum Naturalis, KNNV Uitgeverij, European Invertebrate Survey - Nederland.