Syndemis musculana is a moth of the family Tortricidae. It is found in Europe, China (Heilongjiang, Jilin, Inner Mongolia), the Korean Peninsula, Japan, Russia (Amur) and North America. The wingspan is 15–22 mm. The adults fly from April to July in the temperate parts of their range, such as Belgium and the Netherlands. The caterpillars feed on oaks (Quercus), birches (Betula), spruces (Picea), ragworts (Senecio) and Rubus (brambles and allies). Less usually, they have been recorded to eat plant refuse and dry leaves.