So we have the giving tree for cubs and adols, if your beetle is not a beetle yet then you can drop that there and trade centre BUT, what if we had an equivalent of the tree but for beetles?
Say you have a load of event beetles and you just need one more to fill that beetle group in the book. What do you do with the excess beetles? You could sell them, but their might not sell or might not be worth selling. So I propose: beetle pit (name can be changed). You can send all your excess beetles there to be yoinked by another player in need of beetle karma farming or trying to fill their beetle book. It would be limited to about 2 beetles per day.
It would solve the problem of having nothing to do with these beetles but not the heart to get rid of them yourself. Now your beetle can be rehomed ... until another player deals with it. Or maybe they wont and the beetle will peacefully die of old age.

the beetle wont blame you