Seq # 900090010

Syngrapha interrogationis (Linnaeus, 1758) Species

Last modified: Aug. 26, 2021, 12:53 p.m.

A very rare and local species in Belgium.


Family: Noctuidae > Subfamily: Plusiinae > Tribus: Plusiini > Genus: Syngrapha > Species: Syngrapha interrogationis
Vernacular names
Schijn-gamma-uil (NL), Scarce Silver Y (EN), La Plusie de l'Orcette, le Point d'interrogation. (FR), Heidelbeeren-Silbereule (DE)
First mention in Belgium
Corbeau L. 1905. Extrait du procès-verbal de la séance mensuelle du 14 mai 1905. — Revue mensuelle de la Société entomologique namuroise 5: 21. On page 21.




Museum specimens

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Specimens in nature


Hibernates as a small larva and pupates later in a white cocoon formed on the food plant or among plant debris. The adults are sometimes active by day but usually from dusk onwards. They come later to light and sugar.

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Flight periods

The adults fly in one generation a year; from late June towards late August.

Observed on

Host plant (genera):
Calluna and Vaccinium

The larva lives on Calluna vulgaris and Vaccinium.

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