Huh? re:to suggest to the weevils that they should exfenestrate themselves.

so you'd call the little tube they gnawed for them selves windows? maybe..

and wouldn't the weevils (if they are the same weevils i have been known to get in the summer) be pupa of a small moth? no crustie outer shell- just soft fatty little pupa. and you'd knock the biscuit to dislodge the dust-like frass..

(frass being the correct term, as i recall for insect excretia..) the pupa, would still be latched on, since they glue themselve on with something like saliva...

sometimes i think we are entirely too squimish-- while i don't make a habit of eating insects.. a ant here or there is no big deal. -- but remember the old kids joke..
whats worse than finding a worm in your apple?

Finding half a worm!