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Species Plectrodera scalator - Cottonwood Borer

Large Beetle - Plectrodera scalator Long horned beetle - Plectrodera scalator Cottonwood Boring Beetle - Plectrodera scalator Cottonwood Borer - Plectrodera scalator White / Black Beetle? - Plectrodera scalator White / Black Beetle? - Plectrodera scalator Cottonwood Borer behavior question - Plectrodera scalator Plectrodera scalator
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Cerambycidae (Longhorned Beetles)
Subfamily Lamiinae (Flat-Faced Longhorns)
Tribe Lamiini
Genus Plectrodera
Species scalator (Cottonwood Borer)
Size
22-40 mm
Identification
Big with bold black-and-white pattern. Pretty unmistakable.
Range
Eastern and Central United States. In east, found north of Washington, DC. (Apparently absent from Carolinas, Florida.)
Habitat
Areas with hostplants (poplars, willows), typically riverbanks
Season
June-September (northeast), May-July (Texas)
Food
Adults are reported to browse on shoots of host trees, especially leaf-stems (petioles), and bark.
Life Cycle
Eggs are laid in August, September. Larvae bore at the base of poplars, willows, and overwinter. Two or three years required to reach maturity. Larvae may girdle trees. Pupation occurs in chambers beneath bark.
Print References
Dillon, p. 629, plate LXIII #2 (1)
Yanega, p. 130, fig. 349 (2)
Papp, p. 229, fig. 759 (3)
Arnett, p. 309, fig. 725 (4)
Milne, p. 597, fig. 181 (5)
Drees, p. 119, fig. 177 (6)
Works Cited
1.A Manual of Common Beetles of Eastern North America
By Dillon, Elizabeth S., and Dillon, Lawrence
2.Field Guide to Northeastern Longhorned Beetles (Coleoptera: Cerambycidae)
By Douglas Yanega
3.Introduction to North American Beetles
By Charles S. Papp
4.How to Know the Beetles
By Ross H. Arnett, N. M. Downie, H. E. Jaques
5.National Audubon Society Field Guide to Insects and Spiders
By Lorus and Margery Milne
6.A Field Guide to Common Texas Insects
By Bastiaan M. Drees, John A. Jackman