Xyleborini Explained

Xyleborini are a tribe of ambrosia beetles (alternatively called subtribe Xyleborina of tribe Scolytini), highly specialized weevils of the subfamily Scolytinae. Much of the ambrosia beetle fauna in Eurasia and the Americas consists of Xyleborini species. Some Xyleborini are notorious invasive species.

Most genera are small or even monotypic, and contain 1-8 dozen species. The type genus Xyleborus contains over 500 species, but it is an unnatural grouping of unrelated species.^[1] Key for the world genera of Xyleborini available through a North Carolina State University website.^[2]

Genera

^[3]

• Amasa Lea 1893
• Ambrosiodmus Hopkins, 1915 - sometimes included in Xyleborus
• Ambrosiophilus Hulcr & Cognato 2009
• Arixyleborus Hopkins 1915
• Beaverium Hulcr & Cognato 2009
• Diuncus Hulcr & Cognato 2009
• Cnestus Sampson 1911
• Coptoborus Hopkins, 1915
• Coptodryas Hopkins 1915
• Cryptoxyleborus Schedl, 1937
• Cyclorhipidion Hagedorn, 1912 - includes Terminalinus
• Dryocoetoides Hopkins 1915
• Dryoxylon Bright & Rabaglia 1999
• Eccoptopterus Motschulsky 1863
• Euwallacea Hopkins, 1915 - often included in Xyleborus
• Hadrodemius Wood 1980
• Leptoxyleborus Wood 1980
• Microperus Wood 1980
• Pseudowebbia Browne 1962
• Sampsonius Eggers 1935
• Schedlia Browne 1950
• Streptocranus Schedl 1939
• Taphrodasus Wood 1980
• Taurodemus Wood 1980
• Theoborus Hopkins 1915
• Webbia Hopkins 1915
• Xyleborinus Reitter, 1913
• Xyleborus - possibly paraphyletic with Cyclorhipidion
• Xylosandrus Reitter, 1913
• Anisandrus Ferrari 1867
• Debus Hulcr & Cognato 2010
• Fortiborus Hulcr & Cognato, 2010
• Fraudatrix Cognato, Smith and Beaver, 2020
• Immanus Hulcr and Cognato, 2013
• Planiculus Hulcr & Cognato, 2010
• Stictodex Hulcr & Cognato 2010
• Tricosa Cognato, Smith & Beaver, 2020
• Truncaudum Hulcr & Cognato, 2010

Footnotes

• Genus list from (2004): PEET Xyleborini - Genus list. Retrieved 2008-JUL-08.

Notes and References

1. Hulcr, J., Beaver, R. A., Dole, S. A., Cognato, A. I. 2007: Cladistic review of xyleborine generic taxonomic characters (Coleoptera: Curculionidae: Scolytinae). Systematic Entomology, 32, 568-584.
2. Web site: Archived copy . August 10, 2010 . dead . https://web.archive.org/web/20120310001408/http://www.antmacroecology.org/~ambrosiasymbiosis/Xyleborini_genera/home.htm . March 10, 2012 .
3. Web site: Scolytid Research . 2022-07-25 . 2013-07-01 . https://web.archive.org/web/20130701003854/http://www.scolytid.msu.edu/ . dead .