Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Lasionycta leucocycla is a moth of the Noctuidae family. It can be found in Scandinavia, Siberia and northern North America.The wingspan is 22-28 mm. The moths fly from June to July. Adults feed on the nectar of Silene acaulis, Mertensia paniculata and Senecio species, probably Senecio lugens. The larvae feed on Dryas octopetala and Astragalus species.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