I stumbled onto this and thought it was interesting.
The putto (pl. putti) is a figure of a pudgy human baby, almost always male, often naked and having wings, found especially in Italian Renaissance art. The figure derives from Ancient art but was "rediscovered" in the early Quattrocento. These images are frequently, and erroneously, confused with cherubim. 
In western art, Putti are sometimes mistaken for Cherubim, although they look nothing alike. They are also mentioned in the Bible in the book of Genesis (Gen. 3:24) as the angels who guarded the east side of the Garden of Eden with "a flaming sword which turned every way".
"Putti – which comes from the Latin, putus, meaning 'little man' – are...not so much babies as they are 'not human'. They are spiritual beings and thus depicted in their typically odd fashion; as winged little people of indeterminate gender. Using babies as models for Putti (or for Cherubs, either) doesn't quite get across the true concept of 'Putti-ness' as they (babies) are too guileless, for one thing, whereas Putti are clever and purposeful.
Remember the bone church thread?
This is a Putto; not a cherub:
Art historian Juan Carlos Martinez writes: "Originally, Cherubs and Putti had distinctly different roles, with the former being sacred, and the latter, profane.