- Besma quercivoraria
-
Oak Besma 
Scientific classification Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Lepidoptera Family: Geometridae Tribe: Ourapterygini Genus: Besma Species: B. quercivoraria Binomial name Besma quercivoraria
(Guenée, 1857)Synonyms - Metanema quercivoraria Guenée, 1857
- Besma aeliaria (Walker, 1860)
- Besma textrinaria (Grote & Robinson, 1867)
- Besma trilinearia (Packard, 1876)
- Besma incongruaria (Hulst, 1887)
The Oak Besma (Besma quercivoraria) is a moth of the Geometridae family. It is found across southern Canada (from Newfoundland to British Columbia) and all of the United States except California.
Adults are sexually dimorphic.
The wingspan is 27–41 mm. Adults are on wing from April to September in the south, from May to August in Ontario and from late May to July in Alberta. There are two generations per year.
The larvae feed on the leaves of oak, elm, poplar, willow, Picea glauca, and mostly Betula papyrifera in southern Canada.
External links
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