Watsonalla binaria (Hufnagel, 1767) Species
Last modified: Oct. 3, 2025, 1:58 p.m.
A common species throughout Belgium.
This species is considered Least Concern according to the IUCN Red List category for Flanders 2023.
Details
- Classification
- Family: Drepanidae > Subfamily: Drepaninae > Genus: Watsonalla > Species: Watsonalla binaria
- Vernacular names
- Gele eenstaart (NL), Oak Hook-tip (EN), Le Hameçon, le Binaire (FR), Zweipunkt-Sichelflügler (DE)
- Synonyms
- Watsonalla hamula (Esper, 1786)
- First mention in Belgium
- De Sélys-Longchamps E. 1837. Catalogue des Lépidoptères ou Papillons de la Belgique, précédé du tableau des Libellulines de ce pays. — — : 1–29. On page 26 (as Platypteryx Hamula). view page
- Status
-
Native
Distribution
Imago
Wingspan 18–30 mm.
Museum specimens
Specimens in nature
Caterpillar
Bionomics
It pupates in a tough brown cocoon in a tightly folded leaf.
The moths come to light.
No pictures yet!
Flight periods
The adults fly in two generations from mid-April till June, and from July till end September.
Observed on
- Host plant (species):
- Quercus pubescens
- Host plant (genera):
- Quercus, Alnus, Fagus and Betula
The larva lives on Quercus and occasionally Betula.
No pictures yet!
