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 Dicranura Erminea).
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Status
Native
Distribution
Imago
Wingspan: 50–72 mm.
Museum specimens
Specimens in nature
Egg
Caterpillar
Bionomics
Hibernates as a pupa. The adults come to light.
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Flight periods
The adults fly in one generation a year; from May till July.