ColeopteraCerambycidae – Longhorn Beetles

Tile-horned Prionus

Prionus imbricornis

This record describes Prionus imbricornis (species). Recorded family: Cerambycidae. Recorded order: Coleoptera.

Identification and Appearance

Antennae with 16–23 segments in ♂, 15–21 in ♀ On mid-summer nights, these hit lighted windows so hard at my house in Durham, NC, that I fear the glass will break. Mostly males come to lights.

Classification

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

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

Habitat and Range

Habitat

Deciduous forests and adjacent areas

Geographic Range

e.US (NY‒FL to e.KS‒e.TX); numerous records outside that area are considered in error

Diet and Behavior

Diet: larvae feed in living roots, primarily oak and chestnut, but also grape, pear, and corn

Life History

Female lays 100‒200 eggs at base of trees, vines, herbs. Larvae feed on bark and roots. Larval stage lasts ≥3 yrs.

Additional species information

Species notes from the sources

Etymology: Prionus imbricornis (Linnaeus 1767)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Prionus imbricornis. 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 Tile-horned Prionus

What is Tile-horned Prionus?

Tile-horned Prionus (Prionus imbricornis) is a species in the family Cerambycidae, within the order Coleoptera.

How big is Tile-horned Prionus?

♂ 20.7–39.0 mm, ♀ 28.0–54.8 mm

How do you identify Tile-horned Prionus?

Antennae with 16–23 segments in ♂, 15–21 in ♀

Where is Tile-horned Prionus found?
FeatureDetails
HabitatDeciduous forests and adjacent areas
Rangee.US (NY‒FL to e.KS‒e.TX); numerous records outside that area are considered in error
What does Tile-horned Prionus eat?

The diet of the Tile-horned Prionus includes larvae feed in living roots, primarily oak and chestnut, but also grape, pear, and corn.

What is the life cycle of a Tile-horned Prionus?

Female lays 100‒200 eggs at base of trees, vines, herbs. Larvae feed on bark and roots. Larval stage lasts ≥3 yrs.