Lambdina fervidaria

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Lambdina fervidaria
Lambdina athasaria.jpg
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Geometridae
Genus: Lambdina
Species: L. fervidaria
Binomial name
Lambdina fervidaria
Hübner, 1827
  • Lambdina athasaria (Walker, 1860)
  • Lambdina aequaliaria (Walker, 1860)
  • Lambdina seminudata (Walker, 1863)
  • Lambdina siccaria (Walker, 1866)
  • Lambdina bibularia (Grote & Robinson, 1867)
  • Lambdina semiundaria (Packard, 1867)

Lambdina fervidaria, the curve-lined looper or spring hemlock looper, is a moth of the family Geometridae. It is found in Canada (Nova Scotia, Prince Edward Island, New Brunswick, Quebec, Ontario, Manitoba and Saskatchewan) and the Eastern parts of the United States, south to Georgia.

The wingspan is about 27 mm. The moth flies from May to August depending on the location.

The larva feed on Quercus and Fraxinus. The subspecies Lambdina fervidaria athasaria prefers Abies balsamea, Picea and Tsuga canadensis


There are two recognised subspecies:

  • Lambdina fervidaria fervidaria
  • Lambdina fervidaria athasaria (Walker, 1860)

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