Unless I missed something, all we know about the type of insect in the wood is there are holes. A positive ID would be a big help here to assess the potential for spread.
From the link I gave earlier, "Various anobiid beetles attack seasoned wood in the United States. These beetles range in size from 1/32- to 3/8-inch long; however, those that attack structures are 1/8- to 1/4-inch long. " They mention anobiid powderpost beetles can infest hardwoods or softwoods.
Perhaps interesting: I once watched beetles land and start to dig into the end grain of some green wood. I was outside my garage cutting some maple logs into chunks and waxing the ends with anchorseal. The sweet smell from the wood was strong. I looked up to see a cloud of tiny insects flying towards me from the direction of the woods, I assume attracted by the smell. (It wasn't actually a "cloud" but it sure was a bunch, many dozens or hundreds.) They were tiny beetles and they started landing on the freshly cut end grain and digging holes, more than one on each piece - I was surprised at how quick they were to get holes started. (Were they digging holes to lay eggs?) The anchorseal didn't stop them. I ran and got some insecticide and sprayed the wood then put all the pieces inside and closed the garage door. If I had left the pieces outside all the pieces would probably have gotten infested, assuming they were some type of powderpost beetle. By the time I thought about collecting some for ID it was too late.
JKJ