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Western bruce spanmorm

Operophtera occidentalis


This winter moth is generally found west of the Cascades in Washington, Oregon and California. Its larva have a large variety of host including oak, fir and hemlock. As a winter moth is doesn't have the predators that other moths have. This species is being monitored for possible range expansion and outbreaks.


Attracted to light. Spotted on the wall of a store.

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Spotted by

Washington, USA

Spotted on Dec 23, 2019
Submitted on Dec 26, 2019

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