About Clostera albosigma Fitch, 1856
Clostera albosigma, commonly known as the sigmoid prominent, is a moth species belonging to the family Notodontidae. Asa Fitch first described this species in 1856. This moth is distributed across North America, ranging from Newfoundland west to Vancouver Island, north to Great Slave Lake and the Northwest Territories, and south at least as far as Missouri. The wingspan of adult Clostera albosigma measures between 28 and 38 mm. Adults fly from May to August, with flight timing varying based on location. The species' larvae feed on poplar and willow plants.
