ColeopteraBuprestidae – Metallic Wood-boring Beetles

Goldspotted Oak Borer

Agrilus auroguttatus

This record describes Agrilus auroguttatus (species). Recorded family: Buprestidae. Recorded order: Coleoptera.

Identification and Appearance

Goldspotted Oak Borer - Agrilus auroguttatus
Contributed by Joshua P. Basham; Additional contributions by Beatriz Moisset , Mike Quinn , v belov

A. coxalis , almost identical in appearance, is found in Central Mexico and n. Guatemala (at some point A. auroguttatus was treated as a subspecies of A. coxalis ) It is a native of Mexico and Guatemala and was first detected in Arizona in late 1800's. It was not recognized as an invasive pest until 2008.( Pest tracker ).

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Buprestoidea
Family
Buprestidae (Metallic Wood-boring Beetles)
Subfamily
Agrilinae
Tribe
Agrilini
Genus
Agrilus

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

Habitat and Range

Geographic Range

AZ, CA (introduced); Baja

Diet and Behavior

Diet: coast live oak ( Quercus agrifolia ), canyon live oak ( Q. chrysolepis ), and California black oak ( Q. kelloggii ).

Life History

Now considered a major cause of oak mortality in so. CA ( 3 )

Additional species information

Species notes from the sources

Etymology: Agrilus auroguttatus Schaeffer 1905

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Agrilus auroguttatus. 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 Goldspotted Oak Borer (5)

Goldspotted Oak Borer - photo 1
Contributed by Joshua P. Basham; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Goldspotted Oak Borer - photo 2
Contributed by Joshua P. Basham; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Goldspotted Oak Borer - photo 3
Contributed by Joshua P. Basham; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Goldspotted Oak Borer - photo 4
Contributed by Joshua P. Basham; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Goldspotted Oak Borer - photo 5
Contributed by Joshua P. Basham; Additional contributions by Beatriz Moisset , Mike Quinn , v belov

Photo credits: Contributed by Joshua P. Basham; Additional contributions by Beatriz Moisset , Mike Quinn , v belov

Frequently Asked Questions About Goldspotted Oak Borer

What is Goldspotted Oak Borer?

Goldspotted Oak Borer (Agrilus auroguttatus) is a species in the family Buprestidae, within the order Coleoptera.

How big is Goldspotted Oak Borer?

9-12 mm (Schaeffer 1905)

Where is Goldspotted Oak Borer found?

Range: AZ, CA (introduced); Baja

What does Goldspotted Oak Borer eat?

The diet of the Goldspotted Oak Borer includes coast live oak ( Quercus agrifolia ), canyon live oak ( Q. chrysolepis ), and California black oak ( Q. kelloggii )..

What is the life cycle of a Goldspotted Oak Borer?

Now considered a major cause of oak mortality in so. CA ( 3 )

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

Photo credits: Contributed by Joshua P. Basham; Additional contributions by Beatriz Moisset , Mike Quinn , v belov. Contributors retain copyright over their individual contributions.