ColeopteraChrysomelidae – Leaf Beetles

Xenochalepus potomacus

This record describes Xenochalepus potomacus (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.

Identification and Appearance

Xenochalepus potomacus - Xenochalepus potomacus
Contributed by Mike Quinn

Yellow markings consist of a spot on the vertex, a pair of broad sublateral pronotal areas confluent along anterior margin above and involving the pro-sternum below, as well as joining the small humeral spot; anterior femora yellow at basal one-third, meso-femora feebly spotted at base; a median longitudinal yellow vitta on mesosternum; sides of abdomen narrowly margined with yellow. HOLOTYPE

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Chrysomelidae (Leaf Beetles)
Subfamily
Cassidinae
Tribe
Chalepini
Genus
Xenochalepus

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

Habitat and Range

Geographic Range

GA-MD, MO - Map

Diet and Behavior

Diet: host is Thicket Bean ( Phaseolus polystachios , Fabaceae)

Additional species information

Species notes from the sources

Etymology: Xenochalepus potomacus Butte, 1968

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Xenochalepus potomacus. 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 Xenochalepus potomacus (2)

Xenochalepus potomacus - photo 1
Contributed by Mike Quinn
Xenochalepus potomacus - photo 2
Contributed by Mike Quinn

Photo credits: Contributed by Mike Quinn

Frequently Asked Questions About Xenochalepus potomacus

What is Xenochalepus potomacus?

Xenochalepus potomacus is a species in the family Chrysomelidae, within the order Coleoptera.

How big is Xenochalepus potomacus?

Length: 7.0-8.0 mm

How do you identify Xenochalepus potomacus?

Yellow markings consist of a spot on the vertex, a pair of broad sublateral pronotal areas confluent along anterior margin above and involving the pro-sternum below, as well as joining the small humeral spot; anterior femora yellow at basal one-third, meso-femora feebly spotted at base; a median longitudinal yellow vitta on mesosternum; sides of abdomen narrowly margined with yellow. HOLOTYPE

Where is Xenochalepus potomacus found?

Range: GA-MD, MO - Map

What does Xenochalepus potomacus eat?

The diet of the Xenochalepus potomacus includes host is Thicket Bean ( Phaseolus polystachios , Fabaceae).

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.