Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Acleris hyemana is a moth of the family Tortricidae. It is found in Europe. The wingspan is 14-20 mm. Adults are on wing from August to May. There is one generation per year. The larvae feed on Ericaceae species, mainly Erica, Calluna vulgaris and Vaccinium. A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth (about ten times the number of species of butterfly), with thousands of species yet to be described.