About Lambdina fervidaria (Hübner)
Lambdina fervidaria, commonly known as the curve-lined looper or spring hemlock looper, is a moth species belonging to the family Geometridae. This species is distributed across Canada, where it occurs in Nova Scotia, Prince Edward Island, New Brunswick, Quebec, Ontario, Manitoba, and Saskatchewan. It is also found in the eastern parts of the United States, ranging as far south as Georgia. The wingspan of adult Lambdina fervidaria measures approximately 27 mm. Adult moths are active from May to August, with flight timing varying by location. The larval form of this species feeds on plants from the genera Quercus and Fraxinus. The subspecies Lambdina fervidaria athasaria prefers to feed on Abies balsamea, Picea, and Tsuga canadensis.
