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Genus Xyleborinus

X. saxesenii - Xyleborinus saxesenii Xyleborinus saxeseni - Xyleborinus saxesenii - female Ips? - Xyleborinus saxesenii bark beetle - Xyleborinus attenuatus Belden-J.2021.82 - Xyleborinus saxesenii Xyleborus celsus? - Xyleborinus saxesenii Scolytinae - Xyleborinus saxesenii Xyleborinus? Scolutinae from a Lindgren funnel - Xyleborinus saxesenii
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Curculionoidea
Family Curculionidae (Snout and Bark Beetles)
Subfamily Scolytinae (Bark and Ambrosia Beetles)
Tribe Xyleborini
Genus Xyleborinus
Synonyms and other taxonomic changes
was often treated as a subgenus or synonym of Xyleborus(1)
Explanation of Names
Xyleborinus Reitter 1913
5 spp. (of which 3 adventive) in our area, ~80 total(2)
males dwarfed and flightless, females 1.4–3.5 mm(3)
key to spp. in (2)
also helpful is key to entire tribe in (4)

distinguished from other Xyleborini genera by the projecting, conical scutellum as seen below
worldwide & across NA(1)(3)
attack limbs & boles of weakened trees(1)
Life Cycle
The galleries extend directly into the wood to a depth of 12-18mm then branch.(5)
Internet References
Works Cited
1.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.
2.First records of Xyleborinus octiesdentatus (Murayama) (Coleoptera, Curculionidae, Scolytinae) from North America
Rabaglia R.J., Knížek M.,Johnson W. 2010. Zookeys 56: 219–226.
3.Mercado J.E. (2011) Bark beetle genera of the United States
4.North American Xyleborini north of Mexico: a review and key to genera and species (Coleoptera, Curculionidae, Scolytinae)
Demian F. Gomez, Robert J. Rabaglia, Katherine E. O. Fairbanks, Jiri Hulcr. 2018. ZooKeys 768: 19-68.
5.Eastern Forest Insects
Whiteford L. Baker. 1972. U.S. Department of Agriculture · Forest Service.