Honeybees are very fastidious. They like to keep the hive clean.
As the 2012 summer drought continued, baby bees died in the nursery because bees couldn't find pollen.
When temperatures are over 90F for any length of time, flowers shut down to survive and stop producing pollen.
Worker bees removed the little mummy-like bodies and left them on the hive deck. Sad to see but relatively harmless to the rest of the colony