Smith 1999. Op. cit is contrasted with ibid., an abbreviation of the Latin adverb ibidem, meaning in the same place; in that very place which refers the reader to the title of the work in the preceding footnote. The easily confused idem (sometimes abbreviated id.
Just to be safe I would have to say leave it in a room temperature area; away from any windows or heaters that can affect the temperature of the egg; for about 6 or 7 hours at the least.
Eggs should be collected and stored at room temperature for no more than 7 days at room temperature or at 55F and a humidity of 60% for 14 days, your cellar is a perfect spot for this. To increase your chances of a complete hatch the sooner you put them in to hatch the better.