What type of beetle typically has a small exit hole size of 1/32" to 1/16"?

The lyctid beetle, commonly referred to as the powderpost beetle, is known for creating small exit holes that range in size from approximately 1/32" to 1/16". These tiny holes are indicative of the beetle's larvae, which burrow into wood as they feed, ultimately emerging as adults through these exit points. This specific size is characteristic of lyctid beetles, which tend to infest hardwoods such as oak, maple, and cherry.

Anobiid beetles, while also known for damaging wood, tend to produce slightly larger exit holes, as do Bostrichid beetles. Cerambycids, on the other hand, are associated with larger exit holes as well, making the lyctid beetle unique in this aspect. The identification of these exit holes is crucial for pest control operators as it helps in diagnosing the type of infestation and determining the appropriate treatment methods. Understanding the specifics of each beetle type and their exit hole sizes is essential for effective pest management in structural environments.