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Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

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Species Xylosandrus crassiusculus - Asian Ambrosia Beetle

Asian Ambrosia Beetle - Xylosandrus crassiusculus scoly - Xylosandrus crassiusculus Xylosandrus crassiusculus ? - Xylosandrus crassiusculus Reddish bark beetle - Xylosandrus crassiusculus Ambrosiodmus sp. - Xylosandrus crassiusculus Small, reddish bark beetle - Xylosandrus crassiusculus Xylosandrus crassiusculus? - Xylosandrus crassiusculus Xyleborinus saxesenii - ambrosia beetle - Xylosandrus crassiusculus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Curculionoidea (Snout and Bark Beetles)
Family Curculionidae (Snout and Bark Beetles)
Subfamily Scolytinae (Bark and Ambrosia Beetles)
Tribe Xyleborini
Genus Xylosandrus
Species crassiusculus (Asian Ambrosia Beetle)
Other Common Names
Granulate Ambrosia Beetle(1)
Explanation of Names
Xylosandrus crassiusculus (Motschulsky 1866)
♀ 2.1-2.9 mm, ♂ 1.5 mm
in our area, e. US (MA-FL to MI-NE-TX) & ON(2)(3); native to E. Asia(3), adventive elsewhere, spreads by timber trade(1)
trapped most frequently during the spring [cite:185010]
polyphagous; hosts include members of 46 families (2)
Life Cycle
beetles attack the tree trunk and push the frass out of galleries in a distinctive toothpick fashion [cite:185010]
earliest record in our area: SC 1974(4)
Internet References
Featured Creatures - Atkinson et al. 2012
Works Cited
1.Alien terrestrial arthropods of Europe
Roques A., Kenis M., Lees D., Lopez-Vaamonde C., Rabitsch W., Rasplus J.-Y., Roy D., eds. 2010. BioRisk 4 Special Issue; 2 vols., 1028 pp.
2.Atkinson T.H. (200_-2018) Bark and ambrosia beetles
3.New Curculionoidea (Coleoptera) records for Canada
Douglas H., Bouchard P., Anderson R.S., de Tonnancour P., Vigneault R., Webster R.P. 2013. ZooKeys 309: 13–48.
4.Exotic bark and ambrosia beetles (Coleoptera: Curculionidae: Scolytinae) in the United States: potential and current invaders
Haack R.A., Rabaglia R.J. 2013. In: Potential invasive pests of agricultural crops. Peña J.E., ed. CABI International, Wallingford, UK, pp. 48-74.