Canadian-willowfly
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Oemopteryx glacialis
Canadian willowfly
Oemopteryx glacialis, commonly known as the Canadian willowfly, is a winter stonefly species in the family Taeniopterygidae. It is one of several North American stoneflies adapted to cold-weather activity, with adults emerging during winter months when most other insects are inactive. The species has been recorded from the northeastern United States and adjacent Canada, including Connecticut, Michigan, Minnesota, New York, and Ontario.