The White Oak Borer is a large longhorned beetle beautifully patterned with grayish-white and brown mosaic markings that camouflage it against oak bark. Its larvae bore into the heartwood of oaks, taking two years to complete development, and can structurally weaken large trees. The oval exit holes adults chew are an inch wide and distinctive.
Habitat
Mature oak forests and parks
Diet
Larvae: heartwood of oak. Adults: bark and pollen
How common
Uncommon
Not certain it is a White Oak Borer? What bug is this? walks through what to check first and the lookalikes that catch people out.
Recent White Oak Borer sightings near you
Live, research-grade observations from iNaturalist. Allow location to center the map on you.
Spotted a White Oak Borer?
Point Huck at any plant, bird, or animal and know for sure - plus a live map of where it is being spotted near you.
5,300+species
63national parks
50states