Which pest is commonly found in the longhorned beetle family?

The Old House Borer is indeed a member of the longhorned beetle family, which is known for its long antennae and wood-boring habits. This beetle specifically targets the wood in older structures, causing structural damage due to its larval stage, where it bores into the wood to grow and develop. Understanding the characteristics and behaviors of the Old House Borer can help in diagnosing issues related to wood decay or damage in homes, thus making effective pest control strategies possible.

The other options represent different types of beetles, each with distinct behaviors and habitats. The Asian Longhorned Beetle, while also a longhorned beetle, is more recognized for its invasive impact on hardwood trees rather than structural wood. The Powderpost Beetle is primarily known for infesting seasoned wood but does not belong to the longhorned family. Lastly, the Emerald Ash Borer is an invasive pest that specifically targets ash trees and is not related to the longhorned beetles. Understanding these distinctions is important for identifying pest issues accurately and implementing the right control measures.