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Species Mallodon dasystomus - Hardwood Stump Borer

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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 Prioninae
Tribe Mallodonini
Genus Mallodon
Species dasystomus (Hardwood Stump Borer)
Synonyms and other taxonomic changes
Orig. Comb: Prionus dasytomus Say 1823
Syn: Stenodontes dasytomus (Say)
Explanation of Names
dasytomus - Greek for 'hairy mouth' (1)
- feature not diagnostic
1 sp. n. of Mex. (2)
20-50 mm

Mallodon dasystomus (Say)
Det. M.C. Thomas, 2012
AZ-FL-VA-OK / Mex to Columbia (3)
Deciduous forests
mostly: May-Jul (longer in TX) (BG data)
Larvae bore in live heartwood of trees, incl. oak, elm, willow, pecan, maple, sycamore, etc. (4)
Life Cycle
take 3-4 years to mature. Can be economically damaging. Adults attracted to UV lights.
This was until recently considered a Stenodontes spp., Mallodon was treated as a subgenus.
North Carolina State University Entomology Collection has 70 pinned, including specimens from that state, and no other species listed for the genus.
See Also
Resembles Archodontes melanopus, see Yanega for discussion. (5)
Print References
Yanega, p. 26, figs. 6a-b (5)
Brimley, p. 209 (6)
Dillon, p. 576, plate LVII #8 (7)
Internet References
Works Cited
1.Dictionary of Word Roots and Combining Forms
Donald J. Borror. 1960. Mayfield Publishing Company.
2.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.
3. A distributional checklist of the beetles (Coleoptera) of Florida.
Peck & Thomas. 1998. Florida Department of Agriculture and Consumer Services, Gainesville. 180 pp.
4.Illustrated Key to the Longhorned Woodboring Beetles of the Eastern United States
Steven W. Lingafelter. 2008. Coleopterists Society.
5.Field Guide to Northeastern Longhorned Beetles (Coleoptera: Cerambycidae)
Douglas Yanega. 1996. Illinois Natural History Survey.
6.Insects of North Carolina
C.S. Brimley. 1938. North Carolina Department of Agriculture.
7.A Manual of Common Beetles of Eastern North America
Dillon, Elizabeth S., and Dillon, Lawrence. 1961. Row, Peterson, and Company.