ColeopteraChrysomelidae – Leaf Beetles

Oulema cornuta

This record describes Oulema cornuta (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.

Identification and Appearance

Oulema cornuta - Oulema cornuta
(c) Britney Conney, some rights reserved (CC BY-NC), uploaded by Britney Conney

Oulema cornuta is a species of leaf beetle in the family Chrysomelidae. It is found in North America.

Identification notes

femora red with apices and remainder of legs black

Wikipedia reference for Oulema cornuta: https://en.wikipedia.org/wiki/Oulema cornuta.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Chrysomelidae (Leaf Beetles)
Subfamily
Criocerinae
Tribe
Lemini
Genus
Oulema

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

Habitat and Range

Geographic Range

se. coastal states: TX-FL-MD - Map , e. to Bastrop

Diet and Behavior

Diet: Commelina, Tradescantia (Commelinaceae) ( 5 )

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Oulema cornuta. 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 Oulema cornuta (2)

Oulema cornuta - photo 1
(c) Britney Conney, some rights reserved (CC BY-NC), uploaded by Britney Conney | Contributed by Mike Quinn
Oulema cornuta - photo 2
(c) Britney Conney, some rights reserved (CC BY-NC), uploaded by Britney Conney | Contributed by Mike Quinn

Photo credits: (c) Britney Conney, some rights reserved (CC BY-NC), uploaded by Britney Conney | Contributed by Mike Quinn

Frequently Asked Questions About Oulema cornuta

What is Oulema cornuta?

Oulema cornuta is a species in the family Chrysomelidae, within the order Coleoptera.

How do you identify Oulema cornuta?

femora red with apices and remainder of legs black

Where is Oulema cornuta found?

Range: se. coastal states: TX-FL-MD - Map , e. to Bastrop

What does Oulema cornuta eat?

The diet of the Oulema cornuta includes Commelina, Tradescantia (Commelinaceae) ( 5 ).

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

Photo credits: (c) Britney Conney, some rights reserved (CC BY-NC), uploaded by Britney Conney | Contributed by Mike Quinn. Contributors retain copyright over their individual contributions.