About Twolined Chestnut Borer
A jewel beetle that attacks stressed oaks and chestnuts in eastern North America. It is named for two pale stripes running along its wing covers.
Did You Know?
Drought-stressed oaks are highly susceptible, and repeated attacks over two to three years can kill large trees.
How to Identify Twolined Chestnut Borer
Twolined Chestnut Borer (Agrilus bilineatus) belongs to the order Coleoptera, family Buprestidae. Adults typically measure 5–12 mm.
Twolined Chestnut Borer Habitat
Twolined Chestnut Borer is found in woodlands habitats, particularly across Eastern North America. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
Twolined Chestnut Borer Diet and Feeding
Twolined Chestnut Borer feeds on plant sap by piercing stems and leaves with specialised mouthparts. Sap feeders extract nutrients directly from the plant's vascular system.
Where Is Twolined Chestnut Borer Found?
Twolined Chestnut Borer can be found in Eastern North America, where it inhabits woodlands environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where Twolined Chestnut Borer can be found
Is Twolined Chestnut Borer Dangerous?
Twolined Chestnut Borer is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.
Twolined Chestnut Borer Role in Nature
Twolined Chestnut Borer is part of the food web as a primary consumer, feeding on plant material. It serves as an important food source for birds, bats, amphibians, and other insectivores, connecting plant energy to higher trophic levels.
Seasonal Activity
Frequently Asked Questions About Twolined Chestnut Borer
What does Twolined Chestnut Borer look like?
The Twolined Chestnut Borer typically measures 5–12 mm.
Where is Twolined Chestnut Borer found?
The Twolined Chestnut Borer is found in Eastern North America and typically inhabits woodlands environments.
What does Twolined Chestnut Borer eat?
The Twolined Chestnut Borer feeds on plant sap by piercing stems and leaves.
Is Twolined Chestnut Borer dangerous to humans?
The Twolined Chestnut Borer is generally harmless to humans. It does not bite or sting and poses no significant health risk.
Is Twolined Chestnut Borer endangered?
The Twolined Chestnut Borer is currently classified as Not Evaluated by conservation assessments. Habitat loss and environmental changes are among the primary threats to its population.
What is an interesting fact about Twolined Chestnut Borer?
Drought-stressed oaks are highly susceptible, and repeated attacks over two to three years can kill large trees.
Cite This Page
APA:
InsectDiscover. (2026). Twolined Chestnut Borer (Agrilus bilineatus). Retrieved from https://insectdiscover.com/insect/twolined-chestnut-borer
MLA:
"Twolined Chestnut Borer." InsectDiscover, https://insectdiscover.com/insect/twolined-chestnut-borer.