New to beekeeping. I've recently installed a nuc (less than a week). I'm in Utah and we're coming out of a recent cold and wet spell. Night temperatures are still dipping into the low 40s, and the hive I'm using is used - but they were new last year and were kept at our place. In any event, I've got some dead larvae in various stages of development - some very fresh, some older. There's one that is quite a bit bigger than any of the others - I assume it's a queen. It's abdomen is still kind of milky white but the thorax an head are that honey comb yellow color and the head is just a shell. Maybe it's older? Anyway, They don't appear to have mites on them. Any thoughts as to what it could be and what I might do to treat? I'm trying to post a picture, but it doesn't seem to let me.