Females drill one hole for each egg in living trees where the sapwood has been exposed from an injury. Males guard egg-laying females. Larvae take 2-3 years to develop. Pests on oak, elm, beech, aspen and poplar. Have also been found on boxelder and honeylocust. Spread the fungus Bretziella fagacearum which causes oak wilt. (iNaturalist)
6/7/2015
6/7/2015
