First record of Stegania trimaculata (de Villers, 1789) (Lepidoptera, Geometridae) in Poland, with comments on its distribution in Europe

The article reports on the first record of Stegania trimaculata (de Villers, 1789) (Lepidoptera, Geometridae) from western Poland. Its distribution in Europe and beyond is discussed, with particular focus on its eastward expansion and possible colonization of western Poland. The presence of this species in Asian countries is questioned in the light of possible confusion with Stegania dilectaria (Hübner, 1790) (Lepidoptera, Geometridae).