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Known to attack hickory. This image depicts the ambrosia of the Xyleborus celsus.

Xyleborus Celsus

Known to attack hickory. This image depicts the ambrosia of the Xyleborus celsus.

A depiction of a male and female Xyleborus celsus.

Xyleborus Celsus

A depiction of a male and female Xyleborus celsus.

"The females alone excavate the domiciles, which consist either of branching galleries, as in the gallery of Xyleborys pubescens, or of a broad but thin and leaf-shaped chamber at the end of one of several entrance ways."—Government Printing Office, 1897

Gallery of Xyleborus Pubescens

"The females alone excavate the domiciles, which consist either of branching galleries, as in the gallery…

A species of bark beetle. This image depicts a male and a female.

Xyleborus Xylographus

A species of bark beetle. This image depicts a male and a female.

The galleries of the Xyloterus retusus tend to be built rather deeply into the wood, with the branches extending mostly horizontal.

Gallery of Xyloterus Retusus

The galleries of the Xyloterus retusus tend to be built rather deeply into the wood, with the branches…