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of the Lepidoptera of Belgium


Schoenobius gigantella ([Denis & Schiffermüller], 1775)

A local and rare species in Belgium, only observed in the north of the country.

The larva feeds on the young shoots of Phragmites or Glyceria maxima, often below the surface of the water. When it has finished feeding in a stem it cuts off a piece of reed about its own length and floats on this on the surface of the water until it reaches a new stem. Pupation in a stem below a prepared exit-hole.

The adults have been observed from June till August. They fly at dusk and later come to light.


Belgium, Antwerpen, Viersel, 20 June 2005.
female (Photo © Maarten Jacobs)

Comments to Willy De Prins or Chris Steeman
© Flemish Entomological Society