- Operophtera bruceata
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Operophtera bruceata 
Adult male 
Adult male Scientific classification Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Lepidoptera Family: Geometridae Tribe: Operophterini Genus: Operophtera Species: O. bruceata Binomial name Operophtera bruceata
(Hulst, 1886)Synonyms - Operophtera groenlandica de Lesse, 1951
- Operophtera bruceata hyperborea
The Bruce Spanworm (Operophtera bruceata) or (in North America) "Winter Moth" is a species of moth of the Geometridae family. It is found from coast to coast in southern Canada and the northern parts of the United States.
The wingspan of the males is 25–30 mm. Females have underdeveloped wings and do not fly. Adults are on wing from October to December.
The larvae primarily feed on the leaves of Sugar Maple, American Beech and Trembling Aspen. They have also been recorded on willow and various other deciduous trees.
Gallery
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Egg
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Egg
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Larva
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Damage
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Adult female
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Adult female
External links
External identifiers for Operophtera bruceata EOL 287014 
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