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Longhorn BeetlesBlack beetle found in SE PEnnsylvania
Sat, Jun 27, 2009 at 3:35 PM
Can you please help us identify this beetle we found in our gravel driveway in Bucks County, PA? It’s 2″ long from front to back and appears to have wings.
Hannah
Bucks County, Pennsylvania (SE PA)
Broad Necked Root Borer
Hi Hannah,
Your beetle is a Broad Necked Root Borer, Prionus laticollis. According to BugGuide: “Adults eat foliage, sometimes damage fruit trees, grape vines. Life Cycle Eggs are inserted into ground (or under litter) in groups. Larvae tunnel downward to feed on living roots of a variety of trees and shrubs. At first they may feed on bark, but then proceed to hollow out small roots. Pupation occurs in spring, about 10 cm under the ground. Life cycle probably three years. “
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