ColeopteraChrysomelidae – Leaf Beetles

Oulema margineimpressa

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

Identification and Appearance

Oulema margineimpressa - Oulema margineimpressa
Contributed by Mike Quinn

O. margineimpressa - pronotum inflated, clearly widest anteriorly, and mostly smooth. O. concolor - pronotum not inflate, only slightly widest anteriorly, and finely and coarsely punctate throughout. O. margineimpressa - distinct depression at about the basal one-fourth of each elytron. O. concolor - may or may not have a weak indication of a depression on each elytron.

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

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 AZ

Diet and Behavior

Life History

host unk. ( 3 )

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Oulema margineimpressa. 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 margineimpressa (4)

Oulema margineimpressa - photo 1
Contributed by Mike Quinn
Oulema margineimpressa - photo 2
Contributed by Mike Quinn
Oulema margineimpressa - photo 3
Contributed by Mike Quinn
Oulema margineimpressa - photo 4
Contributed by Mike Quinn

Photo credits: Contributed by Mike Quinn

Frequently Asked Questions About Oulema margineimpressa

What is Oulema margineimpressa?

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

How big is Oulema margineimpressa?

4.7-5.2 mm

How do you identify Oulema margineimpressa?

O. margineimpressa - pronotum inflated, clearly widest anteriorly, and mostly smooth. O. concolor - pronotum not inflate, only slightly widest anteriorly, and finely and coarsely punctate throughout. O. margineimpressa - distinct depression at about the basal one-fourth of each elytron. O. concolor - may or may not have a weak indication of a depression on each elytron.

Where is Oulema margineimpressa found?

Range: se AZ

What is the life cycle of a Oulema margineimpressa?

host unk. ( 3 )

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

Photo credits: Contributed by Mike Quinn. Contributors retain copyright over their individual contributions.