Dicycla oo (Linnaeus, 1758) Species
Last modified: Nov. 19, 2025, 4:38 p.m.
A very rare species occurring in many areas of Belgium, nowadays confined to the southern part with a stronghold in NA.
Details
- Classification
- Family: Noctuidae > Subfamily: Xyleninae > Tribus: Xylenini > Genus: Dicycla > Species: Dicycla oo
- Vernacular names
- Nullenuil (NL), Heart Moth (EN), Le Double Zéro (FR), Eichen-Nulleneule (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 10 (as Cleoceris oo L.). view page
- Status
-
Native
Distribution
Imago
Wingspan 32–38 mm.
Museum specimens
Specimens in nature
Bionomics
Hibernates as an egg and pupates in a fragile cocoon just below the ground.
The adults come to light and also on sugar.
No pictures yet!
Flight periods
The adults fly in June and July in one generation a year.
