High Quality Content by WIKIPEDIA articles! The Pale-lemon Sallow (Xanthia ocellaris) is a moth of the family Noctuidae. IT is found in Europe. THe wingspan is 32-36 mm. THe moth flies from September to October depending on the location. THe larvae feed on Poplar and low growing plants. 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, with thousands of species yet to be described. MOst species of moth are nocturnal, but there are crepuscular and diurnal species. MOths are not easily differentiated from butterflies.