Seq # 902320030

Polia nebulosa (Hufnagel, 1766) Species

Last modified: Oct. 15, 2022, 11:30 a.m.

A not so common, local and widespread species throughout Belgium, less observed at the northwestern part.


Family: Noctuidae > Subfamily: Hadeninae > Tribus: Hadenini > Genus: Polia > Species: Polia nebulosa
Vernacular names
Marmeruil (NL), Grey Arches (EN), La Noctuelle nébuleuse (FR), Waldstauden-Blättereule (DE)
First mention in Belgium
De Sélys-Longchamps E. 1844. Énumération des insectes Lépidoptères de la Belgique. — Mémoires de la Société royale des Sciences de Liége 2: 1–35. On page 12. view page




Wingspan: 45–56 mm.

Museum specimens

Specimens in nature


Hibernates as a half-grown larva among plant debris.
The adults come to light and sugar.

No pictures yet!

Flight periods

The adults fly from mid May till mid August in one generation a year.

Observed on

Host plant (genera):
Betula, Rumex, Lonicera, Rubus and Salix
Deciduous trees, Herbaceous plants and Shrubs

The larva lives at first on different species of herbaceous plants like Rumex. After hibernation, it eats the buds and leaves of trees like: Betula, Lonicera, Rubus or Salix.

No pictures yet!