I visited a new beekeeper the other day and as we looked down through the bottom box there were these black lumps on tan wood. It took me a few seconds to figure out they were on the slide in board under the screen bottom. I pulled the board out and found the black lumps were wax moth larvae covered in debris that fell through the screened bottom. We left the slide in out as we finished the inspection and the ants went to work on the wax moth worms. The beginner did not know the slide in board should have been left out. The worms didnâ€™t seem to have caused any damage to the drawn comb but the bees must have been busy keeping them at bay.