ColeopteraBuprestidae – Metallic Wood-boring Beetles

Agrilus defectus

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

Identification and Appearance

Agrilus defectus - Agrilus defectus
(c) Emily Franzen, some rights reserved (CC BY), uploaded by Emily Franzen

Agrilus defectus is a species of metallic wood-boring beetle in the family Buprestidae. It is found in North America.

Wikipedia reference for Agrilus defectus: https://en.wikipedia.org/wiki/Agrilus_defectus.

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

e NA (QC-GA to ON-ND-TX) - Map

Diet and Behavior

Diet: Larval hosts: oaks ( Quercus alba, Q. muehlenbergii, Q. stellata ) ( 3 )

Additional species information

Species notes from the sources

Etymology: Agrilus defectus LeConte 1860

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Agrilus defectus. 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 Agrilus defectus (2)

Agrilus defectus - photo 1
(c) Emily Franzen, some rights reserved (CC BY), uploaded by Emily Franzen | Contributed by Joshua P. Basham; Additional contributions by Mike Quinn , v belov
Agrilus defectus - photo 2
(c) Emily Franzen, some rights reserved (CC BY), uploaded by Emily Franzen | Contributed by Joshua P. Basham; Additional contributions by Mike Quinn , v belov

Photo credits: (c) Emily Franzen, some rights reserved (CC BY), uploaded by Emily Franzen | Contributed by Joshua P. Basham; Additional contributions by Mike Quinn , v belov

Frequently Asked Questions About Agrilus defectus

What is Agrilus defectus?

Agrilus defectus is a species in the family Buprestidae, within the order Coleoptera.

How big is Agrilus defectus?

3-5 mm

Where is Agrilus defectus found?

Range: e NA (QC-GA to ON-ND-TX) - Map

What does Agrilus defectus eat?

The diet of the Agrilus defectus includes Larval hosts: oaks ( Quercus alba, Q. muehlenbergii, Q. stellata ) ( 3 ).

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

Photo credits: (c) Emily Franzen, some rights reserved (CC BY), uploaded by Emily Franzen | Contributed by Joshua P. Basham; Additional contributions by Mike Quinn , v belov. Contributors retain copyright over their individual contributions.