Noctuidae Acronictinae Acronicta (Triaena) cuspis Acronicta (Triaena) tridens
Acronicta (Triaena) psi (Linnaeus, 1758)
Grey Dagger
Psi

Genus: Acronicta Ochsenheimer, 1816   Subgenus: Triaena Hübner, [1818]   Original genus: Phalaena Linnaeus, 1758

Adult:
A. (Triaena) psi (© Paolo Mazzei)
Adult, Manziana (Roma), Italy, May 1990
(Photo by Paolo Mazzei)
A. (Triaena) psi (© Albert de Wilde)
Adult, Koudekerke, Netherlands, May 30, 2004
(Photo by Albert de Wilde, Vlinders en motten)

Larva:
A. (Triaena) psi (© Paolo Mazzei)
Larva, Manziana (Roma), Italy, June 1995
(Photo by Paolo Mazzei)
A. (Triaena) psi (© Diego Reggianti)
Larva, Roma, Italy, September 2002
(Photo by Diego Reggianti)
A. (Triaena) psi (© Dmitry Gavryushin)
Larva, Naro-Fominsk, Moscow region, Russia, August 13, 2005
(Photo by Dmitry Gavryushin)

Pupa:
A. (Triaena) psi (© Diego Reggianti)
Pupa, Roma, Italy, October 2002
(Photo by Diego Reggianti)

Foodplants:
Prunus, Malus, Rosa, Sorbus, Betula, Salix, Quercus, Crataegus, Ulmus and other trees and shrubs

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