Seq # 900310060

Acronicta cuspis (Hübner, 1813) Species

Last modified: March 13, 2023, 2:31 a.m.

An extremely rare, local and decling species in Belgium with scattered observations.


Family: Noctuidae > Subfamily: Acronictinae > Genus: Acronicta > Subgenus: Triaena > Species: Acronicta cuspis
Vernacular names
Grote drietand (NL), Large Dagger (EN), La Cuspide, le Javelot (FR), Erlen-Pfeileule (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 (as Acronycta cuspis H.). view page




Wingspan: 35–41 mm.
Adults of Acronicta cuspis, Acronicta tridens and Acronicta psi cannot be safely distinguished from each other, except by reference of the genitalia. Allthough larvae of these species are quiet different and are easy to identify as species.

Museum specimens

Specimens in nature


From June till October.

No pictures yet!


The species hibernates as a pupa.
The adults come to light and sugar.

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Flight periods

The adults fly in two generations a year; from mid-May to mid-August.

Observed on

Host plant (species):
Sorbus aucuparia
Host plant (genera):
Alnus and Betula
Deciduous trees

The larva lives on several deciduous tree species, like Alnus, Betula, and Sorbus aucuparia.

No pictures yet!