ColeopteraCurculionidae – Snout and Bark Beetles

Bagous americanus

This record describes Bagous americanus (species). Recorded family: Curculionidae. Recorded order: Coleoptera.

Identification and Appearance

Bagous americanus - Bagous americanus
Contributed by v belov

Often adults sit on the underwater edge of the leaves in the daytime. They can be collected by finding mined leaves and turnimg them gently to see the weevils. At night the adults come onto the top of the leaves to find mates and to replenish air supply.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Curculionoidea
Family
Curculionidae (Snout and Bark Beetles)
Subfamily
Bagoinae
Genus
Bagous

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

Habitat and Range

Geographic Range

e.NA (NS‒ON‒MN to FL‒MS)

Diet and Behavior

Diet: on water lilies ( Nymphaea )

Life History

mines the leaves, pupates in the crown of the petiole

Additional species information

Species notes from the sources

Etymology: Bagous americanus LeConte 1876

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Bagous americanus. 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 Bagous americanus (5)

Bagous americanus - photo 1
Contributed by v belov
Bagous americanus - photo 2
Contributed by v belov
Bagous americanus - photo 3
Contributed by v belov
Bagous americanus - photo 4
Contributed by v belov
Bagous americanus - photo 5
Contributed by v belov

Photo credits: Contributed by v belov

Frequently Asked Questions About Bagous americanus

What is Bagous americanus?

Bagous americanus is a species in the family Curculionidae, within the order Coleoptera.

How big is Bagous americanus?

3.5‒4.0 mm

Where is Bagous americanus found?

Range: e.NA (NS‒ON‒MN to FL‒MS)

What does Bagous americanus eat?

The diet of the Bagous americanus includes on water lilies ( Nymphaea ).

What is the life cycle of a Bagous americanus?

mines the leaves, pupates in the crown of the petiole

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

Photo credits: Contributed by v belov. Contributors retain copyright over their individual contributions.