Seq # 903140020

Chersotis margaritacea (De Villers, 1789) Species

Last modified: Sept. 19, 2023, 8:04 p.m.

This very rare and local species has not been seen in NA for quite some time.
Possibly extinct, but targeted searches during the flight period along the Meuse in Dinant and around Han-sur-Lesse could yield results.


Family: Noctuidae > Subfamily: Noctuinae > Tribus: Noctuini > Genus: Chersotis > Species: Chersotis margaritacea
Vernacular names
Grijze walstro-uil (NL), La Noctuelle à I entier (FR), Graue Labkrauteule (DE)
First mention in Belgium
De Laever E. 1959. Trois espèces nouvelles pour la Belgique. — Lambillionea 59: 54–56. On page 54.




Wingspan: 32–38 mm.

Museum specimens

Specimens in nature

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The larvae feed on different species of Galium and Asperula that grows on rocky places.

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The adults come to light.

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Flight periods

Most Belgian specimens were observed between 18 August and 18 September.

Observed on

Host plant (genera):
Galium, Hieracium, Plantago and Asperula
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It inhabits rocky slopes, boulder fields and gappy, stony places that are rich in fine substrate.

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