Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Half-banded Bryolymnia (Bryolymnia semifascia) is a moth of the Noctuidae family. It is found from northern Colorado and southern Utah southward to south-eastern Arizona and south-central New Mexico. The wingspan is 26-29 mm. Adults have been collected from mid-June to mid-September in conifer forests.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.