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Red Maple Borer?
Dear Bugman,
We have a Red Maple that has suffered extensive damage due to some type of borer. The tree did not fully bloom this spring. Until now, we were not able to find any insect that could be responsible. And, the damage does not match the description for any known borers that attack maple trees. At the beginning of August, we noticed new damage consisting of an entry hole and quite a bit of sawdust at the base of the tree. Peeling back the bark revealed quite a bit of new damage to the tree. The damage included a couple of holes/tunnels that went almost 4 inches into the tree. This week we found a couple of beetle like insects on the trunk. Attached is a jpg image. Any help identifying these insects would be very appreciated. We live in Southeastern Pennsylvania. Thank You.
Keith

Hi Keith,
These are Brochymenas, Tree Stink Bugs. The winged one is an adult and the other a nymph. They are not your borers.

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