How would you describe the exit hole shape of Bostrichid beetles?

Bostrichid beetles, commonly known as the horned powder-post beetles, are identified by their distinctive exit holes. The shape of these exit holes is typically round. This characteristic is a significant aspect of identifying infestations caused by this family of beetles.

Round exit holes indicate that the adult beetles have emerged from wood, which they infest, often causing damage in the process. Understanding the specific exit hole shape is crucial for pest control operators, as it helps in accurately diagnosing the type of beetle causing the problem and determining the appropriate treatment methods to address the infestation effectively.