Just by what I know of temps -
If you keep them warm and moist (bees keep it about 90) there is no reason I know of they should die until they hatch and no bees feed them.
They can probably be kept cooler than 90 but I don't know.
A forum community dedicated to beekeeping, bee owners and enthusiasts. Come join the discussion about breeding, honey production, health, behavior, hives, housing, adopting, care, classifieds, and more!