Species Insects & ArthropodsTwo-lined Chestnut Borer

Two-lined Chestnut Borer

Agrilus bilineatus

CommonInsect & Arthropod
Illustration of Two-lined Chestnut Borer (Agrilus bilineatus)

The Two-lined Chestnut Borer is a slender, metallic buprestid beetle whose larvae tunnel under the bark of oaks and chestnuts, girdling branches and killing stressed trees. Adults are dark metallic green-bronze with two pale yellowish stripes on the elytra. It becomes a serious pest during and after droughts when trees are stressed and less able to resist infestation.

Habitat
Oak and chestnut forests, particularly stressed trees
Diet
Larvae: cambium of oaks. Adults: oak foliage
How common
Common

Recent Two-lined Chestnut Borer sightings near you

Live, research-grade observations from iNaturalist. Allow location to center the map on you.

Spot a Two-lined Chestnut Borer? Identify it instantly.

Point Huck at any plant or animal and get an instant ID, rarity, and field notes — building your personal nature collection as you go.

Get Huck — free

More insects & arthropods

13-Year Periodical Cicada
13-Year Periodical Cicada
Magicicada tredecim
Acmon Blue
Acmon Blue
Plebejus acmon
Acorn Ant
Acorn Ant
Temnothorax curvispinosus
Acorn Weevil
Acorn Weevil
Curculio glandium
Aerial Yellowjacket
Aerial Yellowjacket
Dolichovespula arenaria
Alderfly
Alderfly
Sialis lutaria
Alfalfa Leafcutting Bee
Alfalfa Leafcutting Bee
Megachile rotundata
Ambush Bug
Ambush Bug
Phymata americana