Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Lasionycta fergusoni is a moth of the Noctuidae family. It is found from the southern Washington Cascades through British Columbia and Alberta to southern Yukon. It is found in subalpine forests and is nocturnal. The wingspan is 32-36 mm for males and 32-37 mm for females. Adults are on wing from late June to mid-August 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.