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of the Lepidoptera of Belgium


Brachionycha nubeculosa (Esper, 1785)

A very rare and local species in Belgium, only known from the provinces of Namur and Luxembourg.

The larva mainly feeds on Betula, especially on mature trees. It overwinters as a pupa underground,  sometimes more than one year. 

The adults fly in one generation a year; starting from early March till mid April. They are active during the night and come to sugar and light.


Belgium, Namen, Neuville, 15 March 2009.
(Photo © Alfons Huysmans)

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