Pale prominent, Pterostoma palpina, heart and club, Agrotis clavis, and dark sword-grass, Agrotis ipsilon. Phalaena palpina, clavis, spinula. Handcoloured copperplate engraving by Johann Carl Bock from Eugenius Johann Christoph Espers Die Schmetterlinge in Abbildungen nach der Natur, Erlangen, 1786.
Pale prominent, Pterostoma palpina, heart and club, Agrotis clavis, and dark sword-grass, Agrotis ipsilon. Phalaena palpina, clavis, spinula. Handcoloured copperplate engraving by Johann Carl Bock from Eugenius Johann Christoph Espers Die Schmetterlinge in Abbildungen nach der Natur, Erlangen, 1786.