These insects are generally not aggressive but their mere presence may cause some alarm. There are numerous types of wood destroying beetles. Some of the more common types include powder post beetles, wharf borers and old house beetles. Each beetle has different physical characteristics such as size, color, etc., and an expert is usually necessary for an exact identification. Older homes are generally more likely to experience infestation, however, it is also possible for the insect to be present in the lumber used for new furniture or new construction, only to emerge at a later date.
Most wood destroying beetles behave in similar fashion.
The adult will deposit eggs in cracks or holes in the wood. The eggs develop into the larva stage, which enters the wood and tunnels through as it feeds. After a period of months or sometimes years, the larva will emerge as an adult through exit holes. If conditions remain conducive to infestation, the adults may re-infest the same area and eventually cause structural damage. The sub-grade areas and attic are commonly points of infestation.