Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

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

National Moth Week 2020 photos of insects and people.

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

Discussion, 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

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events


TaxonomyBrowse
Info
ImagesLinksBooksData

Species Placosternus difficilis - Mesquite Borer

Placosternus difficilis Longhorn Beetle sp. - Placosternus difficilis Tentatively - Placosternus difficilis Tentatively - Placosternus difficilis beetle - Placosternus difficilis beetle - Placosternus difficilis Placosternus difficilis beetle - Placosternus difficilis
Classification
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 (Long-horned and Leaf Beetles)
Family Cerambycidae (Long-horned Beetles)
Subfamily Cerambycinae
Tribe Clytini
Genus Placosternus
Species difficilis (Mesquite Borer)
Explanation of Names
Placosternus difficilis (Chevrolat 1862)
Size
10-17 mm(1)
Range
so US (CA-TX, FL) to Honduras; West Indies(2); throughout TX(3)
Habitat
Adults active day and night, running rapidly along freshly cut branches of their host plants and feeding on the blossoms of Koeberlinia, Acacia, Baccharis, Bumelia, Clematis, and Solidago(4)
Season
Feb-Nov (mostly spring & fall) in sTX(4), mostly Jul-Oct in nTX(5)
Food
Larval hosts: Prosopis, Acacia, Pithecellobium, Platanus, Citrus, Leucaena(4)
Remarks
come to lights and bait
Internet References
Works Cited
1.The Cerambycidae of North America. Part V. ... subfamily Cerambycinae, tribes Callichromatini through Ancylocerini
Linsley E.G. 1964. U. Cal. Publ. Entomol. 22: 1-197.
2. A distributional checklist of the beetles (Coleoptera) of Florida.
Peck & Thomas. 1998. Florida Department of Agriculture and Consumer Services, Gainesville. 180 pp.
3.Texas A&M University Insect Collection (TAMUIC)
4.The Cerambycidae, or longhorned beetles, of southern Texas: a faunal survey (Coleoptera)
Hovore F.T., Penrose R.L., Neck R.W. 1987. Proc. Calif. Acad. Sci. 44: 283-334.
5.The Cerambycidae of north-central Texas.
Lingafelter, S.W. & N.V. Horner. 1993. Coleopterists Bulletin, 47(2): 159-191.