About Archiearis parthenias (Linnaeus, 1761)
Archiearis parthenias, commonly known as the orange underwing, is a moth species that belongs to the family Geometridae. It was first formally described by Carl Linnaeus in 1761. This species can be found in Europe, Russia, and Japan. Its adult wingspan measures approximately 30 to 40 millimeters. Adult moths are active in flight from February to May, with the exact timing varying by location. After hatching, the larvae feed first on birch (Betula species) catkins, and then move on to feed on birch leaves.
