I agree that the beetles should be driven away, but if that is too difficult we should send a few, small, spaced out groups of warriors to dispatch those beetles. Spacing the groups out and keeping them small will hopefully attract minimal to no attention to us, as we don't want to have a sudden suprise attack from the wasps.

Once the beetles are gone, scouts can be sent to sweep a large amount of the forest around the threatened  bees in pairs to find the wasps' nest.