Definition of "cupid"

The half-dozen pieces […] were painted white and carved with festoons of flowers, birds and cupids. To display them the walls had been tinted a vivid blue which had now faded, but the carpet, which had evidently been stored and recently relaid, retained its original turquoise.

1963, Margery Allingham, chapter 1, in The China Governess: A Mystery, London: Chatto & Windus