ColeopteraAttelabidae – Leaf Rolling Weevils

Eugnamptus nigriventris

This record describes Eugnamptus nigriventris (species). Recorded family: Attelabidae. Recorded order: Coleoptera.

Identification and Appearance

Eugnamptus nigriventris - Eugnamptus nigriventris
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , v belov

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Curculionoidea
Family
Attelabidae (Leaf Rolling Weevils)
Subfamily
Rhynchitinae
Tribe
Rhynchitini
Genus
Eugnamptus

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

Habitat and Range

Geographic Range

sw. US (AZ‒w.TX) / nw. Mex. (SON) - Map , mostly se AZ-sw NM

Seasonal Activity

late Apr‒Sep, mostly Jun‒Jul

Diet and Behavior

Diet: on Juglans, Quercus

Life History

comes to lights

Additional species information

Species notes from the sources

Etymology: Eugnamptus nigriventris Schaeffer 1905

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Eugnamptus nigriventris. 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 Eugnamptus nigriventris (2)

Eugnamptus nigriventris - photo 1
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , v belov
Eugnamptus nigriventris - photo 2
Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , v belov

Photo credits: Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , v belov

Frequently Asked Questions About Eugnamptus nigriventris

How big is Eugnamptus nigriventris?

3.4‒6.3 mm

Where is Eugnamptus nigriventris found?

Range: sw. US (AZ‒w.TX) / nw. Mex. (SON) - Map , mostly se AZ-sw NM

What does Eugnamptus nigriventris eat?

The diet of the Eugnamptus nigriventris includes on Juglans, Quercus.

When is Eugnamptus nigriventris active?

Eugnamptus nigriventris: seasonal activity - late Apr‒Sep, mostly Jun‒Jul.

What is the life cycle of a Eugnamptus nigriventris?

comes to lights

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

Photo credits: Contributed by Phillip Harpootlian; Additional contributions by Mike Quinn , v belov. Contributors retain copyright over their individual contributions.