Metanema inatomaria, the pale metanema or yellow-lined thorn, is a moth of the family Geometridae. The species was first described by Achille Guenée in 1857. It is found from east-central British Columbia and southern Northwest Territories and Yukon, east to Nova Scotia, south to Mississippi, Texas and Arizona.

Metanema inatomaria
Scientific classification
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M. inatomaria
Binomial name
Metanema inatomaria
Guenée, 1857

The wingspan is 25–36 mm. Adults are on wing from late May to mid July.

The larvae mainly feed on Populus and occasionally Salix species.

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  • Anweiler, G. G. (February 18, 2004). "Species Details Metanema inatomaria". University of Alberta Museums. E.H. Strickland Entomological Museum. Retrieved November 9, 2020.