ColeopteraChrysomelidae – Leaf Beetles

Xanthonia angulata

This record describes Xanthonia angulata (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.

Identification and Appearance

Xanthonia angulata - Xanthonia angulata
Contributed by Brad Barnd; Additional contributions by Mike Quinn

Elytra uniformly medium brown, immaculate (emphasis added); larger, length 3.5–4.0 mm; punctation of elytral disc subseriate; median lobe long, broad throughout length, with deep angular apical incision. Since 1990, E.G. Riley has only found this sp. in TX in Bastrop St. Pk.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Chrysomelidae (Leaf Beetles)
Subfamily
Eumolpinae
Tribe
Adoxini
Genus
Xanthonia

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

Habitat and Range

Geographic Range

e. US: District of Columbia, Indiana, Kansas, Maryland, Missouri, Tennessee, and Virginia , plus Arkansas, Oklahoma and Texas (Bastrop Co.)

Seasonal Activity

April-June in TX

Diet and Behavior

Diet: oaks , including a series of 51 spmns coll'ed by EGR beating blackjack oak ( Quercus marilandica ) in Bastop Co., TX

Additional species information

Species notes from the sources

Etymology: Xanthonia angulata Staines and Weisman, 2001

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Xanthonia angulata. 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 Xanthonia angulata (5)

Xanthonia angulata - photo 1
Contributed by Brad Barnd; Additional contributions by Mike Quinn
Xanthonia angulata - photo 2
Contributed by Brad Barnd; Additional contributions by Mike Quinn
Xanthonia angulata - photo 3
Contributed by Brad Barnd; Additional contributions by Mike Quinn
Xanthonia angulata - photo 4
Contributed by Brad Barnd; Additional contributions by Mike Quinn
Xanthonia angulata - photo 5
Contributed by Brad Barnd; Additional contributions by Mike Quinn

Photo credits: Contributed by Brad Barnd; Additional contributions by Mike Quinn

Frequently Asked Questions About Xanthonia angulata

What is Xanthonia angulata?

Xanthonia angulata is a species in the family Chrysomelidae, within the order Coleoptera.

How big is Xanthonia angulata?

length 3.5–4.0 mm

How do you identify Xanthonia angulata?

Elytra uniformly medium brown, immaculate (emphasis added); larger, length 3.5–4.0 mm; punctation of elytral disc subseriate; median lobe long, broad throughout length, with deep angular apical incision.

Where is Xanthonia angulata found?

Range: e. US: District of Columbia, Indiana, Kansas, Maryland, Missouri, Tennessee, and Virginia , plus Arkansas, Oklahoma and Texas (Bastrop Co.)

What does Xanthonia angulata eat?

The diet of the Xanthonia angulata includes oaks , including a series of 51 spmns coll'ed by EGR beating blackjack oak ( Quercus marilandica ) in Bastop Co., TX.

When is Xanthonia angulata active?

Xanthonia angulata: seasonal activity - April-June in TX.

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

Photo credits: Contributed by Brad Barnd; Additional contributions by Mike Quinn. Contributors retain copyright over their individual contributions.