ColeopteraCerambycidae – Longhorn Beetles2 data sources

Hardwood Stump Borer

Mallodon dasystomus

This record describes Mallodon dasystomus (species). Recorded family: Cerambycidae. Recorded order: Coleoptera.

Identification and Appearance

Hardwood Stump Borer - Mallodon dasystomus
Contributed by Cotinis; Additional contributions by Phillip Harpootlian , Mike Quinn , v belov , Marci Hess , Arturo Santos

Tubercles at the base of the antennae acute; mandibles nearly horizontal, prolonged in male, more or less carinate above, most bidentate and pubescent internally.

Wikipedia reference for Mallodon dasystomus: http://en.wikipedia.org/wiki/Mallodon_dasystomus.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Cerambycidae (Longhorn Beetles)
Subfamily
Prioninae
Tribe
Mallodonini
Genus
Mallodon

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

Deciduous forests

Geographic Range

se. US to AZ (AZ-FL-VA-OK) to Columbia - Map

Diet and Behavior

Diet: Larvae bore in live heartwood of trees, incl. oak, elm, willow, pecan, maple, sycamore, etc. ( 3 )

Life History

take 3-4 years to mature. Can be economically damaging. Adults come to lights. Eggs are laid around wounds, particularly near the base of the tree. The larvae bore into the heartwood, feeding gregariously. ( 4 )

Additional species information

Species notes from the sources

Etymology: Mallodon dasystomus (Say 1823)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Mallodon dasystomus. Species-specific details appear above.

Group overview

Coleoptera is the largest order of insects with over 400,000 described species, representing ~25% of all known animal species and ~40% of all insects. In the U.S. alone, nearly 30,000 beetle species have been identified.

Ecological role of the group

Beetles are prominent decomposers, especially in forests, breaking down dead wood and recycling nutrients. As predators, they reduce populations of pest insects. Many species are also important pollinators of flowering plants.

Economic and practical significance of the group

Beetles have major economic significance: leaf beetles (Chrysomelidae) and weevils (Curculionoidea) are among the most destructive agricultural pests globally, costing billions annually, while predatory species like ladybugs provide natural pest control.

Recorded sources for this group: Britannica, Smithsonian, NCSU Entomology. Imported estimates may describe particular regions or reporting periods.

Explore Coleoptera families and species →

Photos of Hardwood Stump Borer (2)

Hardwood Stump Borer - photo 1
Contributed by Cotinis; Additional contributions by Phillip Harpootlian , Mike Quinn , v belov , Marci Hess , Arturo Santos
Hardwood Stump Borer - photo 2
Contributed by Cotinis; Additional contributions by Phillip Harpootlian , Mike Quinn , v belov , Marci Hess , Arturo Santos

Photo credits: Contributed by Cotinis; Additional contributions by Phillip Harpootlian , Mike Quinn , v belov , Marci Hess , Arturo Santos

Frequently Asked Questions About Hardwood Stump Borer

What is Hardwood Stump Borer?

Hardwood Stump Borer (Mallodon dasystomus) is a species in the family Cerambycidae, within the order Coleoptera.

How big is Hardwood Stump Borer?

20-50 mm

How do you identify Hardwood Stump Borer?

Tubercles at the base of the antennae acute; mandibles nearly horizontal, prolonged in male, more or less carinate above, most bidentate and pubescent internally.

Where is Hardwood Stump Borer found?
FeatureDetails
HabitatDeciduous forests
Rangese. US to AZ (AZ-FL-VA-OK) to Columbia - Map
What does Hardwood Stump Borer eat?

The diet of the Hardwood Stump Borer includes Larvae bore in live heartwood of trees, incl. oak, elm, willow, pecan, maple, sycamore, etc. ( 3 ).

What is the life cycle of a Hardwood Stump Borer?

take 3-4 years to mature. Can be economically damaging. Adults come to lights. Eggs are laid around wounds, particularly near the base of the tree. The larvae bore into the heartwood, feeding gregariously. ( 4 )

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Cotinis; Additional contributions by Phillip Harpootlian , Mike Quinn , v belov , Marci Hess , Arturo Santos. Contributors retain copyright over their individual contributions.