The diversity amongst cockroaches is astounding - there is even a Table Mountain cockroach with a distribution only in the Cape Town area.
When it comes to beetles, the range is even bigger. There is one thing I can say it is not - and that is a woodborer beetle. This one has eaten the paper.
Type of food is pretty specific, it takes some pretty special digestive abilities to eat and obtain nutrition from dry, seasoned timber. When it comes to woodborer beetles, it's the larva stage that does the damage.
A hole in paper caused by woodborer does occur, but only because it's in the way and not for nutrition. The result tends to be a clean hole straight through.
A fairly accurate measurement of length would help.
And for any other pest control types taking this one on, the area is Cape Town. (That eliminated a few of my hot prospects).