frass

Unidentified frass. Sonora California. 12 October 2017. Collected from basement, by Josh Esposito.

 

holes are about 1/8 inch diameter
holes are about 1/8 inch diameter
Frass visible inside exposed lumber
Frass visible inside exposed lumber
Frass visible inside exposed lumber
Frass visible inside exposed lumber
Exit holes
Exit holes

Millimeter scale. frass about 0.75 mm in length.
Millimeter scale. frass about 0.75 mm in length.

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