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Upcoming Events

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

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Species Semanotus ligneus - Cedar Tree Borer

Cedar Tree Borer Beetle (Semanotus ligneus ligneus) - Semanotus ligneus Semanotus ligneus Cerambycid? - Semanotus ligneus cedar tree borer - Semanotus ligneus Semanotus ligneus Cedar Tree Borer - Semanotus ligneus - Semanotus ligneus Distinctive spotted beetle. - Semanotus ligneus beetle  - Semanotus ligneus
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 Chrysomeloidea (Longhorn and Leaf Beetles)
Family Cerambycidae (Longhorn Beetles)
Subfamily Cerambycinae
Tribe Callidiini
Genus Semanotus
Species ligneus (Cedar Tree Borer)
Synonyms and other taxonomic changes
a number of taxa formerly treated as subspecies of S. ligneus have been elevated to species by Hammond & Williams (2013)(1)
Explanation of Names
Semanotus ligneus (Fabricius 1787)
ligneus 'related to wood'
8-12 mm(2)
Some specimens are largely dark(2)
e. NA to Calif. (NS-MB to TX) - Map (1)(3)(4)
hosts: Thuja, Cupressus, Juniperus(1)