Eurois occulta (Linnaeus, 1758) Species
Last modified: Nov. 7, 2023, 7:11 a.m.
A very rare species throughout Belgium, most observations are from the east.
Outside this area they are vagrants.
Details
- Classification
- Family: Noctuidae > Subfamily: Noctuinae > Tribus: Noctuini > Genus: Eurois > Species: Eurois occulta
- Vernacular names
- Grote bosbesuil (NL), Great Brocade (EN), L'Occulte (FR), Graue Heidelbeereule (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 (as Aplecta occulta Rossi). view page
- Status
-
Native
Distribution
Imago
Wingspan: 50–61 mm.
Museum specimens
Specimens in nature
Caterpillar
The larva feeds mainly at night.
No pictures yet!
Bionomics
Hibernates as a small larva. After overwintering, especially in the later instars, they live on various herbaceous plants.
Pupates in moss or plant debris on the surface of the soil, without a cocoon.
The adults come especially to sugar in numbers and also to light, usually late at night.
No pictures yet!
Flight periods
The adults fly in one generation a year from mid-June till early September.
Observed on
- Host plant (species):
- Myrica gale
- Host plant (genera):
- Betula, Salix and Vaccinium
- Substrates:
- Herbaceous plants
The larva lives on Myrica gale, Vaccinium, Salix, Betula and, especially after overwintering, on various herbaceous plants.
No pictures yet!
