About Acleris umbrana (Hübner, 1796-1799)
Acleris umbrana is a moth species that belongs to the Tortricidae family. Its known distribution covers Great Britain, France, Belgium, Germany, Austria, Switzerland, Italy, the Czech Republic, Slovakia, Poland, Hungary, Norway, Sweden, Finland, the Baltic region, Russia, and extends eastward as far as Japan. This species inhabits woodland, fens, and marshes. The wingspan of adult Acleris umbrana ranges from 18 to 23 mm. Adults have a single generation per year: they first become active from July and August through late October, overwinter as adults, and become active again from late February to early May. The larvae feed on Sorbus aucuparia, Alnus glutinosa, Cornus sanguinea, Salix caprea, Prunus spinosa, Prunus avium, and species within the Crataegus and Carpinus genera. Larvae feed inside the spun leaves of their host plants, and can be found in June and July. This species overwinters in the adult life stage.