- Damage is mostly to sapwood but can extend into the heartwood - may only be obvious when timber is cut
- In framing timbers adults may emerge through covering materials
- Tunnels in heartwood may be filled with resin which may dry and fall out giving the impression of fresh damage
- Adults range from 5 - 85 mm
- Elongate rectangular body shape
- Long many-jointed antennae
Oval holes 3 - 15 mm diameter