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of the Lepidoptera of Belgium


Orthosia gracilis ([Denis & Schiffermüller], 1775)

A widespread but uncommon species throughout Belgium.

The larva lives on various herbaceous plants, shrubs and trees like Populus, Salix, Prunus spinosa, Myrica gale and  Filipendula ulmaria. Hibernates as a pupa in an underground cocoon.

The adults fly from late March till late May in one generation a year. They come to light and sugar.


Belgium, Namur, Wavreille, 21 April 2007.
(Photo © Chris Steeman)
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© Flemish Entomological Society