''Clostera albosigma'', the sigmoid prominent, is a moth of the family Notodontidae. The species was first described by Asa Fitch in 1856. It is found in North America from

Newfoundland Newfoundland and Labrador (; french: Terre-Neuve-et-Labrador; frequently abbreviated as NL) is the easternmost province of Canada, in the country's Atlantic region. The province comprises the island of Newfoundland and the continental region ...

west to Vancouver Island, north to the Great Slave Lake and the

Northwest Territories The Northwest Territories (abbreviated ''NT'' or ''NWT''; french: Territoires du Nord-Ouest, formerly ''North-Western Territory'' and ''North-West Territories'' and namely shortened as ''Northwest Territory'') is a federal territory of Canada. ...

and south to at least Missouri. The wingspan is 28–38 mm. The moth flies from May to August depending on the location. The larvae feed on poplar and willow.

External links

* Notodontidae Moths of Japan Moths of North America Moths described in 1856 Taxa named by Asa Fitch {{Notodontidae-stub