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

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.
Photos of Oulema margineimpressa (4)
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 )
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