Vi.. I would think it would be to late in the year for them to be still in the bulb but once again I have not had much experience with them up until this year, I have never seen them in my garden until this year but then again what a weird year for plants in Iowa there has been a lot of 1st's in 2014 for me at this time of the year at least here they are supposed to be in the moth stage and laying eggs for next year
I would be surprised if they were active that far south have heard of them in Tennessee but Mississippi is a stretch. I have found grubs or worms in my bulbs with rot they are not borers all though they look like them.. Borers have a distinctive look with a pink/red head so would guess that is not what you are seeing and Borers will eat each other from what I understand it is rare to find multiple alive once they reach the bulb. If you can take a picture of what you are looking at.
