Okay, this Q is a bit late in the season, but I'll file your answer away for use next spring/summer.
I like the look of wearing loafers without socks when it's hot, but I hate the feel (and smell) of wearing shoes w/o socks. Do you have a suggestion for socks/stockings that cover only the necessary parts of the foot w/o peaking above the loafer?
Of course! Many men are uncomfortable with authentic socklessness, and opt for faking it with "no show" or "loafer" socks; extra low cut socks that sit lower than the top of your shoes. Get them in black or brown (or whatever color to match your shoes in case they play peek-a-boo). You can pick up these from Banana Republic, 2 pairs for $14.99.
Thanks for reading, SB