ColeopteraCerambycidae – Longhorn Beetles

Physocnemum violaceipenne

This record describes Physocnemum violaceipenne (species). Recorded family: Cerambycidae. Recorded order: Coleoptera.

Identification and Appearance

P. violaceipenne is usually 11-13 mm in size and is associated with white oaks, but perhaps other oaks. I have a nice series from NJ, and single specimens from Oklahoma, Arkansas and Missouri. Larvae feed in dead branches. (D. Heffern, pers. comm. to MAQ, 2022)

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Cerambycidae (Longhorn Beetles)
Subfamily
Cerambycinae
Tribe
Callidiini
Genus
Physocnemum

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

Habitat and Range

Geographic Range

ne N. Amer.

Diet and Behavior

Life History

in dead branches of white oak

Additional species information

Species notes from the sources

Etymology: Physocnemum violaceipenne Hamilton 1896

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Physocnemum violaceipenne. 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.

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Frequently Asked Questions About Physocnemum violaceipenne

What is Physocnemum violaceipenne?

Physocnemum violaceipenne is a species in the family Cerambycidae, within the order Coleoptera.

Where is Physocnemum violaceipenne found?

Range: ne N. Amer.

What is the life cycle of a Physocnemum violaceipenne?

in dead branches of white oak