Seq # 510170010

Tetheella fluctuosa (Hübner, 1803) Species

Last modified: Feb. 24, 2020, 10:27 a.m.

A fairly common species throughout Belgium.


Family: Drepanidae > Subfamily: Thyatirinae > Genus: Tetheella > Species: Tetheella fluctuosa
Vernacular names
Berken-orvlinder (NL), Satin Lutestring (EN), La Cymatophore onduleuse, l'Aqueuse (FR), Birken-Eulenspinner (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.




Museum specimens

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Specimens in nature

Flight periods

The adults fly in one generation a year; from mid May till mid August, sometimes a partial second generation occurs till September. Most observations from end May till July. They come to light and sugar.

Observed on

Host plant (genera):

The larva lives mainly on Betula, but has also been found on Alnus glutinosa.

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