Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Glossy Black Idia (Idia lubricalis) is a moth of the Noctuidae family. It is found from Canada south to Florida and Texas.Idia occidentalis was formerly considered a subspecies of Idia lubricalis.The wingspan is 24 36 mm. Adults are on wing from May to September. There are multiple generations per year in the south. The larvae feed on various fungi and lichens. They probably feed on other organic matter like rotting wood and grass on forest floor as well.