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Banded alder borer

Rosalia funebris


The Banded alder borer is a longhorn beetle with distinctive black and white markings. 1.5 inches in length.


Spotted on a dead alder tree -- this is where they lay their eggs. Riparian forest at the Billy Frank Jr. Nisqually National Wildlife Refuge.

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Brian38 9 months ago

Thank you, Neil.

Neil Ross
Neil Ross 9 months ago

That's a beauty! Well spotted, Brian.

Spotted by

DuPont, Washington, United States

Spotted on Aug 2, 2020
Submitted on Aug 5, 2020

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