ColeopteraCerambycidae – Longhorn Beetles

Prionus geminus

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

Identification and Appearance

differs from P. emarginatus by the: imbrication of antennomeres in males slightly emarginated at apex (distinctly bifurcated in emarginatus ); last antennomere in males simple or slightly complex (distinctly complex in emarginatus ); ventral side of antennomeres in female not carinate (distinctly carinate in P. (H.) emarginatus ); apex of imbrication of antennomeres in female not emarginated at apex (emarginated in emarginatus ) Holotype ♂ & paratype ♀

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

Geographic Range

ID‒AZ‒CO‒TX

Additional species information

Species notes from the sources

Etymology: Prionus geminus Santos-Silva, Nearns & Swift 2016

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Prionus geminus. 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 Prionus geminus

What is Prionus geminus?

Prionus geminus is a species in the family Cerambycidae, within the order Coleoptera.

How do you identify Prionus geminus?

differs from P. emarginatus by the: imbrication of antennomeres in males slightly emarginated at apex (distinctly bifurcated in emarginatus ); last antennomere in males simple or slightly complex (distinctly complex in emarginatus ); ventral side of antennomeres in female not carinate (distinctly carinate in P. (H.) emarginatus ); apex of imbrication of antennomeres in female not emarginated at apex (emarginated in emarginatus ) Holotype ♂ & paratype ♀

Where is Prionus geminus found?

Range: ID‒AZ‒CO‒TX